This was a problem of mine. I would get an idea or find myself inspired by something I read and register a bunch of domains. Before I know it, I had over a hundred domains for projects that were parked and not generating any income.
I now make a list and set a reminder in outlook to review the list in a day or two. If a domain is worthing picking up, it will be just as good in a few days. If it is gone, it wasn't meant to be.
BTW - I can give you a great deal on adviceforadollar.com and purplepacket.com.