Flag Strategy · Flag theory, residency & borders

Live where you're treated best — and keep the receipts.

The honest, practical guide to flag theory and the perpetual-traveler life: residency, the 183-day rule, the Schengen shuffle, and the day-counting that makes it all hold up. The strategy others sell; the daily tracking we build.

Flag theory & the perpetual travelerWhat flag theory and the perpetual-traveler (PT) lifestyle actually mean — the five flags, where the idea came from, who it's for, and the day-counting discipline that makes it work in practice.

The apps behind the guide

Flags: Schengen CalculatorStay inside the EU 90/180 rule, counted from your photos.
Flags: Tax ResidencyWatch the 183-day line in every country and US state.
Flags: Countries Visited MapA private map of everywhere you've been.