Beer and Writing

I have a question for all you writers out there. What are your thought on drinking while writing? Do a few beers allow you to think thought you may not have had sober? Does a glass of wine help you relax and get you in the writing mood? Do you need to have a completely clear mind before you can start writing, and alcohol inhibits this?

I have been known, on occasion, to have a beer while writing some evenings. I have yet to see a decline in the quality of my writing nor an improvement in writing due to having a drink. I was just curious what other writers felt about this.

Update:

I was thinking about this a little this morning and I think the only “drug” that would actually be a performance enhancer for my writing would be some kind of pill that would create more time in the day. The biggest obstacle to my writing right now is lack of time.