On your wedding day you'll want to smell as much like a dream as you look. In addition to making sure you're wearing long-lasting deodorant, stash a small tube of your favorite perfume in your purse so you can reapply it as needed.
Because happy tears are pretty much inevitable on your wedding day, you may need to touch up smeared under-eye concealer or -- if you didn't go the waterproof mascara route -- cover up smudges.
Between dance floor induced sweating and shedding tears of joy, makeup touchups are pretty much inevitable. You'll want to have tissues on hand for obvious reasons, but Q-Tips will come in handy as well. Use them to remove stray eyeliner, clean up lipstick or wipe away eye shadow fall out.
The bride can't flee to the bathroom every time she needs to fix her hair or makeup (after all, you agonized over your DJ's playlist for hours, so there's never a good time to leave the dance floor). Keep a slim compact mirror on hand, which will allow you to quickly and discreetly touch up your look -- without missing out on any of the night's revelry.