I really get a lot out of talking to other artists.
Last night I hung out with an old friend from high school and we talked for a few hours about what we were each doing and where we wanted to go. I don't think it was 15 minutes into the conversation when the ideas started flowing. He makes vinyl toys. I suggested that he could easily transfer his toys to slip casting or even sand/lost wax casting without too much difficulty or expense. He showed me a lot of mind blowing prototyping stuff he uses or has access to. He loved the idea of porcelain figurines. This morning I got a message from him, he had this for me: http://www.kolintribu.com/ . And we were off again.
This afternoon I picked up some cast iron scrap from a local foundry for a project I'm working on. Talking to the foundry guys for just a few minutes gave me ideas.
Tonight I was supposed to go to a drawing jam where we pass around drawings and collectively work on them. Scheduling didn't work out, but whenever I go, I'm always impressed at how each person approaches the drawings differently.
0.001% of all this will likely get through my thick skull and make an actually imprint, but as long as I'm actively engaging with other artists or nature, or whatever, I find I get inspired.