If I can't use them directly, I can often use their ideas. In graphics, there is nothing like playing with plug-ins. I also love working with gradients, textures, fills, and fancy text. I get a lot of good stuff from a high-consciousness graphics newsgroup. Those people are really good, and helpful, too.
Processes can be helpful.
Here's a potent checklist that can help in many situations. Be impeccable with your word. Don't take anything personally. It's not about you. Don't make assumptions.