HiddenPlanning guides
Guides to planning with spreadsheets and PDFs: dates that follow dependencies, habits that survive a missed day, and a wedding budget that adds up.
Guides
Excel Gantt chart with dependencies: how dates follow tasks
How a spreadsheet Gantt chart can move dates when a predecessor slips, a worked example with calendar days, what Excel cannot do, and the planning fallacy.
6 min readHabit tracker in Excel or on paper: streaks and goals
How to set up a habit tracker that survives a missed day: pick the cue, count streaks and percent of goal, link habits to goals, with what research says.
6 min read2027 digital planner for GoodNotes: how to choose and use it
What a hyperlinked PDF planner is, how ISO week numbers and links work, which app features matter, and honest limits on sync and use.
6 min readWedding planning spreadsheet: budget, guests and seating
Run a wedding in a spreadsheet: a budget with deposits, a guest list with RSVPs and meals, a seating plan that checks capacity and a dated checklist.
6 min readTask list with dependencies, an automatic Gantt chart, milestones, workload by owner and a weekly status page
The Project Planner & Gantt Chart takes up to 100 tasks and works out start and finish dates from each task's predecessor, then draws the Gantt chart, milestones, workload by owner and a weekly status page. Excel file, €17 once; no macros.