For me, it's chips. Doritos, namely. I haven't met a Dorito I didn't like. I can't even BUY them anymore because I used to thinking the big bags (rather than the smaller ones) would be more economical and I could use them for DH's lunches. Let's face it though, few of them ever made it into the lunchbox.
For my mom, it's cookies. When it's hot like this, though, I turn from chips to ice cream. So I actually bought the only light ice cream I can tolerate (Dreyer's French Silk). But these cravings are just not helping me get toned.
So what's your craving/weakness/Achille's heel? I know you have one... (two? three? come on)