Travel Add-On Markups

Travel Add-On Markups travel budget dossier: Baggage fees, eSIM markups, tipping culture, and the small add-ons that attach to ordinary choices. Includes ledger rows, proof checks, timing, scenarios, mistakes, rescue flow, and queued breakout guides.

Travel Add-On Markups sits under Budget › The Hidden Costs in the HowTo Travel menu. Guides for this section are still being brought over from the original edition.