Well alcohol is a blood thinner and if you plan on getting trashed you could bleed more than usual. This is what I would do: Pack more tampons or pads than you would normally use. Make sure you put on/or in a new tampon/or pad right when you start drinking. All the drinking is going to make you pee more so you will be in the bathroom more than you would usually anyway. So to ensure there is no embarrassing leakage going on, just make sure you check every time you go pee. Or use a tampon and a panty liner on your under ware, so that if you do leek a little bit it won't leek through your under ware or your pants.