Contents
Set up a monthly log
Draw 31 date rows down the left page, add a repeating column of 7 weekday letters, and put the month's tasks on the right page — that is the entire monthly log. On a 5 mm dot grid an A5 page gives you about 38-42 usable rows, so the calendar fits with room for a header. The first setup takes 20-30 minutes; later months take about ten.
A one-spread calendar: 31 numbered rows with 7 repeating weekday letters on the left page, a running task list on the right.
A monthly log compresses one calendar month into a two-page spread. Down the left page you write the dates 1 to 31, one row per day, with a narrow column of weekday letters beside them. The right page carries the month's tasks and events as short bullets.
The format sits in the middle layer of a structured journal: a future log holds the next 6-12 months at a glance, daily entries hold one dated note per day, and the monthly log is rebuilt every month between them. It is deliberately spare — no boxes, no printed hours, just rows.
Because the layout is only rows, a 5 mm dot grid is the natural ruling for it. The dots align the date column and the weekday column without the visual noise of full lines, and an A5 page holds about 38-42 rows once margins are subtracted — enough for 31 dates plus a header.
Budget 20-30 minutes for the first setup; later months take about ten because the layout never changes.
Work in pencil ticks first, ink second. Each step below names the failure it prevents, because every one of these failures is common enough to have earned a name.
Size decides how many rows you get; paper weight decides which pens you can use.
Notebook size sets your row budget. A5 (148 x 210 mm) is the standard choice: portable, and its 210 mm height at 5 mm spacing yields roughly 38-42 usable rows after margins. B5 (176 x 250 mm) adds width for longer daily entries; A4 (210 x 297 mm) is a desk format that suits project logs more than monthly ones.
Paper weight is measured in gsm, and notebook paper runs from 52 to 120 gsm. 80 gsm is the standard weight and handles ballpoint, fineliner and pencil without trouble. If you write with a fountain pen, look for 90 gsm or heavier — that is the threshold where bleed-through stops being a routine complaint.
Choose before you draw: a log laid out for 38 rows will not transfer cleanly to a shorter page. The size-by-size breakdown, with row counts and how many months of entries typical page counts hold, is on the Notebook Sizes Compared page; ruling and paper trade-offs are worked through in Dot Grid vs Lined Paper.
Count the rows before you number them — the grid forgives pencil, not ink.
A task that survives three migrations is not a task; it is a wish.
| What you measure | Value | Where it applies |
|---|---|---|
| Dot grid spacing | 5 mm | every page of the log |
| A5 page | 148 x 210 mm | the standard monthly-log size |
| Usable rows on A5 | 38-42 rows | after top and bottom margins |
| Date rows per month | 31 rows | one row per calendar day |
| Weekday lines | 7 letters | repeating column beside the dates |
| Paper weight | 52-120 gsm | 80 gsm standard, 90 gsm for fountain pens |
| Weekly review | 15-30 min | index, future log, migration |
| Notebook lifespan | 249 pages ≈ 8 months | at one dated entry per day |
The monthly log works only as part of a three-piece system: index up front, future log next, monthly spreads after.
Three pieces make the system: an index on the first pages, a future log covering the next 6-12 months on a single two-page spread, and the chain of monthly logs after it. The monthly log is the only piece you rebuild every month, but it depends on the other two.
Wiring is simple bookkeeping. When you draw a new monthly spread, write its page numbers into the index beside the month's name. When a task appears that belongs to a later month, send it to that month in the future log instead of crowding the current one.
At month changeover, read the future log first: anything listed there for the new month migrates into the new monthly log before you write fresh tasks. This loop is what keeps a paper system trustworthy — the full walkthrough is on the How to Set Up a Monthly Log page.
Fifteen to thirty minutes once a week keeps every open task visible.
Migration is the discipline that separates a log from a diary. Once a week, set aside 15-30 minutes: read the index, check the future log, and rewrite every open task either forward into the new week or out of the system entirely.
A task that survives three migrations is usually not a task but a wish — strike it or split it. If the review keeps slipping, run it as a Pomodoro: 25 minutes of work, a 5-minute break, and a longer 15-30 minute break if you run a second cycle.
The figures cited are the standard specifications of the dot-grid format together with widely published findings on habit formation and the 25-minute work cycle.