I'll echo what some of the strobists have been saying here: ditch the tp, it's just wearing out your battery and increasing your risk of spontaneous combustion, instead think about the relative size of your light source to the subject. The film canister thing is pretty good, makes the light a bit bigger, but also mimics a "bare bulb" sending light around the room somewhat evenly - another trick I used to use was just to grab a white business card, fold 2 of the corners down on one of the short sides, slip that under the pop up flash, and then fold the card up so that it is in front of the flash - I only use this indoors, basically it bounces the flash up and back, using the walls and ceiling as your diffuser whilst still giving a bit of fill as long as you're using white cards that aren't very thick.
here's some pics to explain:
http://jrgould.com/uploads/8389afc43...142aa5d9ac.jpg
http://jrgould.com/uploads/b3024eb5a...66c822b15d.jpg
http://jrgould.com/uploads/5e1dbea31...e72e2aaa75.jpg