How often do you drain your air compressor?

Be honest now. I'm planning to build a new shop in the spring, and plan to get a bigger (noisier) air compressor. In my old shop, I had a 110 v. unit mounted on a stand. When I left for the night, I'd shut off the compressor, and reach under neath and open the drain valve. If I put the new one outside, I don't see myself being as diligent at draining it.