No no no no no.
Whether you're working in a team or working by yourself: Use Subversion Anyway. Or svk. Or Darcs. Any reputable revision control system will kick the pants out of any ad-hoc solution you come up with. Revision control should be automatic and easy. The value of being able to easily merge changesets alone is reason enough for any non-trivial project. Keeping track of branches for experimental/delicate changes, tagging releases, LOG MESSAGES for all your changes - all of these things, use them, learn to love them. It's a bitch to get in the habit, but when you do it's absolutely worth it.
It's taken me over seven years to truly learn the worth of version control. These days I'd dare not live without it. It really is that good. Honest!
Oh. My. God.
Ruby on Rails.
I just started playing around with it tonight
Wow.
Admittedly at the moment it's just a toy application. But at the very least, Ruby on Rails has earned it's place in my heart as a rapid prototyping tool.
Hmm
All seems condemned in the long run to approximate a state akin to Gaussian noise. -- James Martin