For those of you that have panniers on your bikes, what are you carrying in them day to day? In mine I've usually got a small first aid kit specific to bikes, earplugs, sunnies, small bottle of sunscreen, pillion helmet and a cable wires to the bike to charge the phone. On longer trips I'll add a puncture repair kit as well as clothes and stuff. All this fits in one sidebox, leaving the other sidebox and top box for my own helmet, groceries, a jacket or whatever. I've also got a small toolkit in the bike itself. What are you carrying?