Okay, you do know how I love Target! Laura over at Sharpen Your Scissors is seeing how far she can stretch a $10 giftcard to donate food to the local foodbank. More impressive, scroll down and see how she maximized (and that's not even an impressive enough word) a $20 Target giftcard last year.
Disclaimer: I generally do not use coupons on travel size items, I used two last week, but some people stock up on travel sized items rather than regular sized items. Travel sized has it's place, but overall I like to think buying the larger package is saving on packing overall. Feel free to do what you want, some stores will give you grief over it, but if the coupon doesn't specify excluding trial size, feel free to use it.