It's nearly two years since I went to a wedding, and three since I took DD to one.
I can't remember what I'll need to take - how about:
Mints (smelly breath from standing around for hours starving chatting)
Tissues
Something to keep DD(4) occupied in case there's a long wait at quiet times
Gift and card
Plasters/Painkillers
Lippy
Face mask(?)
Anything else?