Dude,
I am so impressed with the TB idea. I thought I was the only one to have thought of it. Check out PRONOIA!!! the TB. I just set it loose and there are no miles yet. Maybe this weekend.
I have some things to add to the discussion. Someone said they could barely fit a tall kitchen trash bag in a film cannister. I have this habit of immediately shaking out the bag when I pull it out of the box. Don't do it. Use it airless and flat. The trick is a series of folds and rolls. While you've got it laid out on the counter you can easily add your personalized CITO sticker. Again fold and roll, wadding will never be easy.
You don't want to limit yourself to film cannisters. I love Pill Bottles. Everyone knows those orange and white screw cap jobbies. I get my supply from what ever I am perscribed. I used to recycle them back to the pharmacy until I thought of them as CITO containers. It's quite possible they would have a large supply of free stuff for the geocacher. I haven't asked the pharmacist if I could have any. Let me know your results. Let me sing the Pill Bottle praises. They come in all sizes. The CITO bags sold at Groundspeak is bound to fit some. I choose the EZoff lid kind. For the person concerned with kids getting hurt, just get the child proof caps. Because they come in all sizes they are flexible in range. The smaller caches can have a film canister while those with space to spare can handle larger containers. Some good items for stuffing include, but is not limited to, Nitrile Gloves - Large, tall kitchen trash bags, shopping bags, maybe a free CITO sticker to the first finder. Don't be daunting by adding trash bags so big no one can carry it, or so many it looks hard. I do like the labeling or identifying sticker to show our quiet help. Mostly we like to hide and lurk. The official CITO bag in the dumpster may not be a billboard, but that's the kind of advertising I like.
Anything that is a vessel and label friendly can be a CITO container. Like one poster said, use candy containers. Make the CITO as fun as possible, a game. Make people want to white wash a fence. My dog won't stop messing with trash and I think I inadvertently trained her...
Thanks to everyone who plays the CITO game.
Thankyou.