I know some of you swear off deodorant while on the trail. But if you don't. . . or if, like me, you use UL techniques while traveling on business and vacation; here's a simple thing to do:
Use solid deodorant (or make up your own). When it gets low, don't toss it, but scrap/knock out the residue, and pack it into an empty Chapstick dispenser. In the photo are the weights of the Chapstick version compared to a travel-sized and a regular-sized.
You can buy empty tubes, but so many lip balms are given away at trade shows and fair booths.
To do it again, I'd use a clear tube and write an empty tare weight on it to track contents more easily.

