I just went through the same thing. At the store after work, hungry, no kids with me, and I had myself convinced that it was no big deal just to drink a couple of beers today after a hard day after I've been sober for 3 weeks now. What saved me..I thought of that first beer, and then the second one. Every time I drink after a good period of abstinence, it never feels good, at all. But yet I still want to keep drinking. And so the cycle would continue. Not this time. Stay strong guys...it may suck now, but it's only temporary. Tomorrow you will be so happy that you persevered!