How to plan a big trip on a small budget without spreadsheet misery

The unglamorous planning loop we run before every long trip — and the one template behind it.

By Marcus Vela · 2026-03-24

Big trips don't blow up because of one extravagance. They drift, a few untracked decisions at a time.

The fix isn't a 40-tab spreadsheet. It's a simple loop you run weekly until departure: estimate, book the anchor costs, and let the rest flex.

The loop

Anchor costs first — flights and a few key stays lock the skeleton.
A daily number — one realistic figure for food and local transit beats line-item dread.
A buffer you don't touch — 15% set aside makes surprises boring instead of stressful.

Plan the bones, leave the rest loose. The best parts of a trip are rarely the ones you booked in advance.