Except for EZ-Up tent, chairs, and trainer, my gear bag has all the above in it. Towels, TP, tools, street clothing, towels, rubbing alcohol (for towels), atomic balm, etc. Plus all my kit clothing. Right now "kit" means 3 shorts, 3 ss jerseys, 1 ls jersey, vest, 3 knickers, 2 base layers, 1-2 rainjackets, misc warm ls layers (non-kit, but to be covered by kit), booties, 4? 5? prs gloves, 3-4 head things, 3 prs shoe covers. It's a bit different from the following post but it's close:
http://sprinterdellacasa.blogspot.co...-your-bag.html
Same bag, new kit, and I don't have as much of the new kit so I have some old kit as "base layers". I got some new stuff and some old stuff is gone or retired.
Since it's all together it's easy to move around as a unit.
Trainer - I don't warm up, or warm up very little, plus I don't like trainers before a race, so usually don't carry one.
EZ-Up - only when I promote I bring them.
cdr