Imprest.
Starts neat. Bag of clean folding stuff, big brown envelope full of clean A4 sheets of instructions and forms.
Day 1 - pay out agreed amounts of dosh to eager crowd wanting to get to BX, Bar, Pool or whatever. Collect signatures. Keep first scruffy piece of paper with smaller bag of dosh and try and find hotel safe. Join crowd whereever about one hour later.
Day 2 - pack, get bag from safe, breakfast all while watching bag. Join crowd on bus and start shelling out more dosh against receipts. Stick pile of gash paper in brown envelope in bag. Add in shrapnel. Prepare for next country.
Day 2 - PM, as Day 1 except not in zlotties or rials of whatever.
Absolute PITA and just why most pax aircraft have a copilot!