I've found that just toying around with different ideas and artistic flows, multiple projects at a time, I never really get artist's block. I guess having the abundance of tools that I have to continue the flow really helps, for instance when I'm working on a song, sometimes I'll just bust out the monome and play around in the key of the songs with different samples and I'll end up with exactly what I want in the end. Sometimes it gets extremely difficult, but I usually work through it. I've found that the presence of drugs or alcohol usually hinders progress, not just in me but the people that I attempt to "jam" with. They usually play sloppily, can't keep in time or key and their all around performance suffers.