After my half marathon, I lapsed a bit in the food that I was buying (read: bought more crap in addition to the healthy things). When I started spending all my time at aerial, I lapsed even more and started buying more quick, easy things and fewer fresh ingredients since I had less time available to cook. About two months ago, as I started to get really serious about trying to get back on track and lose some weight, I realized that this was a problem.
So, I took some drastic measures. I avoided going to the grocery store for a month and a half and instead dedicated my efforts toward eating all the unhealthy crap out of my kitchen. It was rough.