what goes in a dog bag?

I'm putting a dog bag together for our obedience class
so far, I have a 6 ft leather leash, 5 ft nylon. nylon choke chain, water
bowl, treats,
squeaky toy ,human meds. what else goes in there?

Judy...

Lots of poop bags. A few paper towels - I just fold them and put them in an
unused poop bag.

And for some of us, a cheap pair of reading glasses.

Rocky...

I also pack a pair of disposable contact lenses. If I do
something klutzy and break my glasses, I'll be able to get
myself home.

Lynne...

WOW! A man who plans!! I hope your wife/SO appreciates the heck out of
you.

Congrats to Rocky!!

shore...

Poop baggies, easily-accessible (clips to belt, etc.) treat
bag (if appropriate to class).

Pen and paper.