ninjaqutie

As mentioned above, I'm a fan of liquid bandaids like nuskin. It works great when you are too sweaty to have a band-aid stick to your skin or its in an awkward area. They have some individual packs that are single uses, but most commonly, it is a small jar/vial that is meant for multiple uses. I'm not sure if there is anything in the formula itself to kill bacteria or not, so sharing may not be the best thing without further research.

Of course, they have disposable mini brushes you can use that aren't so expensive......