Yes, unused gift cards are still a waste. It's hard to hit the magic number when spending and I'm often guilty of shoving them in a wallet or drawer to remember to use . . . until my memory fails me.
Then, when grabbing tea with my pal, GeekSugar, this morning, I noticed her handy trick. So you make the most of every last dollar and cent, wrap sticky notes around each with the remaining balance and take note of any purchases. In addition to being another more obvious use for your phone's calculator, it's a nice way to splurge on an afternoon yogurt without feeling like you've spent hard earned cash in the process.