Tubs

Inflate your tub, glue it, then leave it to dry.

Once it's dry, lay it out on the ground with the rubber side down, and both "ends" turned over to allow the tyre to sit this way, each "end" will be turned over like this:

Then roll the tub up so that you are always laying rubber onto the dried glue:

The turns should be calculated to make the tub into a neat bundle that goes under your saddle when completely rolled up:

You can compress this as much as you want as there is no glue to glue contact, it's all rubber on glue, which won't stick.