I was just browsing through all of the "Tips from the Pros" emails that
Full Tilt sends out and I must have skipped this tip before, but Kristy Gazes had a good idea about moving up limits
She said that if you have three successful sessions in a row that you should consider moving up, and three losing sessions you should move down.
Everything is about money management but I hate when people are stuck in a mindset and won't put but X% of their bankroll at a table. What Kristy said was good because it keeps you moving up, down, or eventually you can look back and see that you could easily get three good sessions at a given limit but couldn't cash in the next.