Ah, girlfriends, these jolly lovable knots made of jealousy.
But, as for the topic.
As I currently took a break in making my "Foreign Relations" strip, I announced free commission/request time to keep myself occupied and not fall into any art-block. I just don't want to think about what to draw, it's the main reason, and I don't want to get rusty. So, in my opinion, one of the best way to keep yourself occupied and running is to draw for others. Their ideas, their concepts, your time and skills.
You can check out the deal about commisions of mine at http://pietja8t8.deviantart.com/. You can also make a request if you agree with the rules posted in my DA journal and I'll think about it. I'm currently starting 3'rd commisioned pic, so I can't say I'm grumbling about the lack of work.
If you don't have DA account, you can always send me a P.M. here, if you're interested.