Just talk to your dr...imo (not to be taken as much), I don't think you are taking that much klonopin, so if you time it right, you might be ok. But your dr. should know you are drinking anyway as klonopin does stay in your system a long time and you want to be safe. A pharmacist might be able to talk to you as well, but still tell your dr for sure.
Glad .5 twice a day works fairly well for you. I take 4 mg at night to keep my bad dreams away, but it helps none with my anxiety during the day...and I started out at 4 mg, no tolerance to build up, nothing less worked.

And no, I never drink, but then I assume it's always in my system.

Good luck.