I started out with this mentality, but it simply means you aren't fully devoted, and until you really care about something very strongly, it won't get anywhere. You have to have time for the business so that you can perform better than your competitors, which might be through R&D, targeting a niche they don't, whatever.
Overall, tfinch2 is right, it has to be serious. If you think that an internet business will mean no work because in Web 2.0, the users do everything, you're wrong. Initially, it'll probably be more work than any other business. You need to know that if what you're trying works out, it should have the potential to make some meaning, not just a few bucks here and there.
I would find a few others who want to work on things like this in your area and just start brainstorming. Go to halfbakery.com, pull out 50 ideas, and discuss them. At the very least and even if nothing comes of this, you will have started to think through ideas and begin to dream. A lot of beginning entrepreneurs don't realize how important dreaming is - just find ways to improve anything you care about or anything that bugs you. Start with some topics like eliminating check out lanes, research why RFID hasn't been implemented to solve it, read books about someone who inspires you or someone you look up to (Google story, Guy Kawasaki's books, whatever you enjoy), or anything you enjoy.
As an entrepreneur, part of what you have to do is dream and it's probably the most enjoyable part, because it happens all the time.
Anyway, if you ever want to discuss this, let me know. If you take the time to write an executive summary, you can probably take your ideas to competitions and get feedback from judges. I have lists of ideas that I've discussed with many people and so far, only one is something we're pursuing.
By the way, a good movie I saw recently was The Aviator, the main character is what I believe an entrepreneur should work to be, without the mental issues.
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