okay so im going on a trip to california in like 2 weeks and i want to take a carry on bag with me.. problem is, i dont really have a bag and ive been searching here and there to find one. heres what i want: a pretty small bag that holds: money, cell phone, camera and iPod. i want it to be like a messenger bag (one strap) and i want it to be simple. does anyone know where i could find one that matches my description? thanks