The notebook

Guides, how-tos and notes from the bench.

Practical help with the things the apps are for, and the thinking behind how they’re made.

3 October 2026Guide
What to put on an invoice in the UK
The details every UK invoice needs, what changes for limited companies and VAT-registered businesses, and how long to keep your copies.
2 October 2026From the bench
Building 120 puzzles that can all be solved
How BlockGrid's puzzles are made backwards from an empty board, then checked by a solver that plays them through the game's real rules.
2 October 2026Guide
How to chase a late payment without the awkwardness
Three ready-to-use reminder messages, from a friendly nudge to a firm final notice, plus what UK law lets you add when another business pays late.
1 October 2026Guide
How to declutter when you don't know where to start
When the whole house feels like too much, start with one cupboard and five minutes. A gentle, practical way to clear space without a weekend of sorting.
1 October 2026How to play
How to play PathRight (and get unstuck)
The rules of PathRight's sliding-ball puzzles, how portals work, and five ways to get past a level that's beaten you.
30 September 2026How to play
How to play ArrowFire
The rules of ArrowFire's arrow puzzles, the new pieces that arrive in later chapters, and how to read a tangled board.
30 September 2026From the bench
Why Room to Breathe has no streaks
Most habit apps count your days in a row. A decluttering app that punishes you for missing a day would add clutter to your head, so I built something gentler.