Best Laid Plans

Sarah Hart-Unger, a pediatric endocrinologist, mother of three, podcaster, and creator of the Best Laid Plans podcast and Academy course, presents a systematic approach to planning that spans every time horizon from the year down to the individual day. She opens by framing time as a nonrenewable resource that most people fail to manage with sufficient intention. Two contrasting fictional Monday scenarios illustrate her argument: a reactive, unplanned day filled with missed workouts and last-minute scrambles versus a proactive, planned day marked by confirmed commitments and a sense of closure. While no system can eliminate every disruption, Hart-Unger contends that shifting the balance toward proactivity leads to greater satisfaction and more fun.

Hart-Unger grounds her authority in personal experience, having juggled competing interests since adolescence. The greatest catalyst for her planning methods was having three children during medical training, when patient care, documentation, and pumping breastmilk left almost no margin for error. She positions the book as distinct from productivity literature written by authors with fully flexible schedules, noting that she still takes seven-day on-call stretches multiple times per year.

The book's foundation rests on three essential tools. The first is a master calendar: a single, reliable source consolidating all time-specific commitments, replacing the fragmented mix of work accounts, sports apps, and school portals that commonly cause scheduling surprises. The second is nested goal setting, in which goals at each descending time horizon, from annual to daily, are generated by consulting the list from the level above while considering upcoming priorities and available energy. This ensures annual aspirations filter into concrete daily tasks without overwhelming the planner on any given day. The third is airtight task management, inspired by productivity author David Allen's principle in Getting Things Done that the mind is for having ideas, not holding them. Hart-Unger instructs readers to inventory all their inboxes, set intentional processing cadences, and triage every item into one of five categories: tasks, calendar items, information to file, items to park for later, and messages requiring detailed responses. She also introduces the someday possibilities list as a holding place for ideas that matter but cannot happen now; the idea for the book itself sat on her own list for years.

Hart-Unger devotes a full chapter to annual planning, arguing that 365 days is long enough to accomplish significant projects yet short enough to maintain a clear vision. She recommends a retreat of at least one full day structured in five parts: visioning exercises imagining life years ahead and reflecting on the past twelve months; a calendar landscape review of major events; choosing three to eight life domains and brainstorming goals into each; auditing the draft list by assigning cadences to habit goals, start dates to time-sensitive goals, and first steps to multi-step projects, plus a "fun audit" aiming for roughly two enjoyable goals for every less-fun one; and saving the finalized list prominently while scheduling the next seasonal review.

Seasonal planning bridges annual ambitions and shorter-term action. Hart-Unger introduces quintiles, her term for dividing the year into five segments aligned with natural life rhythms, though she stresses that the number and boundaries should be customized. Each half-day session follows a parallel structure: reflect on the prior season, review annual goals, survey the upcoming calendar and one's energy, and generate a seasonal goals list. She shares a personal example of repeatedly failing to complete estate planning until she reframed the vague goal into a concrete action: scheduling a meeting with her husband and an estate-planning lawyer. The chapter also introduces the Ideal Week exercise, in which the planner maps an ideal 168-hour week to test whether goals fit into available time, along with optional practices such as financial assessments, childcare audits, and meal-planning templates.

At the monthly level, Hart-Unger invokes research on the Fresh Start Effect, a phenomenon identified by Wharton economists describing the spike in aspirational behavior at temporal landmarks. Monthly goals naturally become more task-like as large projects break down. She addresses the myth that habits form in 21 days, tracing it to plastic surgeon Maxwell Maltz's 1960 book Psycho-Cybernetics and citing a 2009 study finding formation times range from 18 to 254 days. The chapter includes life-maintenance practices from zero-based budgeting, a method of assigning every dollar a purpose for the month, to decluttering, household audits, and monthly fun lists.

Hart-Unger identifies the week as her favorite planning horizon. Drawing on Allen's weekly review concept and writer Laura Vanderkam's work on weekly routines and time use, she outlines a five-part review: reflect on incomplete tasks and decide their fate (migrate, schedule, refine, delegate, or release); audit the calendar day by day; process all inboxes; assess energy and mood; and generate a list of roughly 15 items. She supplements this with customizable "weekly ops" covering meal planning, exercise, childcare logistics, fun, and a communication plan combining a verbal family discussion with a written record.

Daily planning requires just 10 minutes and four essentials: a reliable calendar, the weekly task list, awareness of daily habits and routines, and a protected time slot. The planner reviews the prior day, scans scheduled events, checks personal energy, and selects matching tasks. Hart-Unger addresses disrupted days with a pivot protocol: handle the crisis, scan for non-negotiable commitments, create a backup plan, and recover using the original. She describes productivity author Cal Newport's time-block planning, which assigns every minute a designated task, as useful for packed days but too intense for everyday use, and advocates a closing ritual at day's end to signal the transition to rest.

A chapter on feeling stuck tackles burnout, overload, intimidation, and procrastination. Hart-Unger opens with a listener who felt paralyzed by task lists and was ultimately diagnosed with burnout, illustrating that planning tools cannot always solve the underlying problem. For overload, she shares her decision to leave a director-level residency leadership role when growing creative work made her commitments unsustainable. For intimidating projects, she analyzes the four barriers that stalled her estate planning: intimidation, lack of a deadline, emotional difficulty, and absence of accountability. For procrastination, she poses five diagnostic questions probing perfectionism, fear, clarity, timelines, and genuine desire.

A chapter on challenges within the planning process covers the learning curve, planning privilege (Hart-Unger's term for the dynamic in which one household member, most often a woman, performs all planning labor while another enjoys the benefits), uncertainty, planning perfectionism, digital time sucks, and all-or-nothing thinking.

Six case studies demonstrate how real individuals customize the system: a remote-working nurse using an all-digital setup; a stylist with ADHD who handwrites appointments to reinforce memory; an IT project manager who co-plans with his wife; a general manager maintaining a master spreadsheet; a part-time project manager who plans entirely on paper; and an attorney caring for a daughter with complex medical needs who operates two master calendars and follows an energy-driven approach. These vignettes show the framework accommodates wide variation in tools, rhythms, and circumstances.

Hart-Unger concludes by reaffirming that the purpose of planning is not productivity for its own sake but meaningful use of one's finite time. A comprehensive calendar, airtight task management, and clear processes at every time horizon enable people to eliminate conflicts, align actions with priorities, and move toward their dreams one step at a time.