Charlotte, keep writing! I went as far as posting a blog, and I read back over the last week and a half of sober writings several times a day. Just like I know me best, you know you best! Keep in mind, alcohol is not oxygen, you CAN live without it. So when you ask yourself "what's wrong with a drink from time to time?", counter that with the question:"what's wrong with NOT drinking?"
And just keep NOT doing it. You know for sure that it wont hurt you physically or financially to NOT drink. You know that if you don't drink at all, you won't wonder if it's "getting bad' or too much. Sounds to me like you're on the right track. Again, keep writing, notes to yourself or on these messageboards. I found it to help quite a bit.