I love the vasoline/cotton ball method, used it a lot backpacking, the stuff practically explodes if you fluff it up a bit. I used film cannisters though, no leakage. I work in a hospital lab and have access to plastic vials of various sizes that come in so handy!! The film cannisters are too big for an altoids can but i'm a chick and my "purse" is a camelbak for now. My "purse" has a small prybar, swimgoggles, gloves, paracord, headlamp, flashlight, ear plugs, bandannas, safty pins, steel leaders, esbit fuel, whistle, leatherman ect. It sucks that I can't pee standing up sometimes (especially when camping in the rain when it's cold and I'm wearing a lot of warm clothes in a warm sleeping bag) but I guess being able to carry my "purse" is a small concession! <img src="images/graemlins/blush.gif" alt="" /> If it wasn't for the shoulder straps I might actually carry a "purse". Sure would like to have one of those other things when it's cold and raining out! <img src="images/graemlins/grin.gif" alt="" />