I'm in a similar situation, we never know when test day is so I keep a bottle of QF in a small "pocket" I made, just cut off 3-4 inches off an old sock and sew it into the strap of underwear but you MUST keep a heat pack on it while using this method, you can buy heat packs cheap on ebay or wal-mart or CVS. The best part is it looks like your really peeing, you unzip, reach down and unscrew the QF top and pour it in. I modified several pair of underwear like this (wouldn't want to wear the same pair everyday, LOL). BTW I re-heated mine over 200 times like this until it was needed and QF still worked like a champ!..