Good job everyone resisting (or restricting) cake! I personally find it easier to resist the sweets in my own home. And I know it makes no sense, because it's a constant temptation. My husband refuses to give up junk, so I still buy it, and I know it's there, and I even watch him eat it beside me in bed sometimes. I guess I just know that I would fail if I gave into the junk food in the house. But usually when my family does their monthly potluck, I always have some dessert, and have a tough time avoiding it. Maybe it's just the social eating, or whatever that's harder to resist, or maybe it's because I figure if it's just once a month it won't do that much damage.
I hate wasting food too though. I finished my toddler's hotdog yesterday because I didn't want to throw it out (but in all honesty, I was hungrier than usual too, and if I had felt more satisfied, I probably would have thrown it out).