Here's a trick that worked for me. Try to stretch you bladder. Find a time that you will be at home for awhile. Then, drink a lot (A LOT) of some liquid that makes you have to pee (pepperment Tea is a good one) Then wait until your bladder fills. Do not use the toilet. HOLD IT. Do this as long as possible. You may want to change into old clothes or even sit directly over the toilet. Crossing your leggs or putting your hand between your thighs works well. Time yourself and try to hold your pee longer each time. I used to wet my pants but I streched my bladder and I now have no accidents even on long car trips.