Wow, people really seem to like mixing weed with almost anything.
-Weed and beer (not too much of either)
-Benzos (valium, xanax or klonopin) with a couple pints ((of beer)) (again, not too much, so I can remember)
I seem to be one of the few who doesn't like to mix heroin, or other opiates, with anything. Personally I don't like to take away from my heroin high...
Though cigarettes and opiates were a nice combination, until I quit.