I'd like to be an angel one day, but I'm still plumbing away at the entrepreneur thing first. I'd like to get a few successes under my belt, and really experien

I'd like to be an angel one day, but I'm still plumbing away at the entrepreneur thing first. I'd like to get a few successes under my belt, and really experience starting and growing the businesses, before I jump into investing. What are some things I can be doing now to prepare myself for angel investing?