How-to
Short answers to the planning questions that cause trouble on the road. Each one ends with what the planner checks for you.
How to check a travel itinerary for gaps before you go
A checklist for the mistakes that only show up mid-trip: unbooked nights, overlapping hotels, missing transfers and connections too tight to make.
How much time to leave between connections
What decides whether a connection is long enough, why one booking differs from two, and the margins the planner flags.
How long a passport needs to be valid for a trip
Why a passport that is valid on the day of travel can still be refused, what to look up for each destination, and the margin the planner flags.
How to split shared trip costs, including across currencies
Equal and unequal splits, why rounding quietly loses money, and how to settle up when people paid in different currencies.