Depends on what glue I'm using.
I use Testors liquid, Tenax, and Tamyia Extra Thin. The Tenax I keep in an old marked bottle of Tamyia. I like the fine brush in Tamyia Extra Thin.
I use the Model Masters with the metal tube, and CA. I treat these the same way. I tape a small piece of foil to the coner of my cutting mat, and put a drop on that. Then I use either an old exato blade, toothpick, or micro brush. I also have a few sewing needles of different sizes, stuck into some small sticks, with half the eye cut off. good control over small drops of CA, and when they get clogged (and they surely will) I simply pass a flame under them and the CA burns off. When the foil get too cluttered with dried glue, I remove it, and simply tape down another small piece.
For 5 minute(Or longer) type epoxy, I slip a file card inside a sandwich baggie, when done, just throw it in trash.
Character is what you do when no one is looking.
Few things are harder to put up with than a good example.- Mark Twain
Make yourself an honest man, and then you may be sure that there is one less scoundrel in the world.--Thomas Carlyle