Blast,

You can get bug repellant wipes like alcohol swabs. I forget the brand but they're perfect size for getting your face and hands...and they take up next to no space. I typically pack a little bottle of vintage 90% DEET Muskol in my bag next to the sun screen in the summer.

I keep a Coghlan's bug hat net thing (I think I paid $1.85)permanently inside my O.R. goretex hat. It never comes out unless I'm using it.

Good call on the fish net too. I'm not sure it's big or strong enough for fishing but it would be perfect for scooping minnows to use as bait.