Of course Dropbox is not your only option.
I am a cheapskate so I backup to an external drive using SuperDuper every three months and keep it at work. (Plus a monthly backup in a fire safe.) But I can't really recommend that method (risk of someone stealing the drive, for example.) At some point I will switch to some other service. Maybe one of these: http://mac-online-ba...tenreviews.com/
Wait, you mean I have to get a job? There has to be an easier way. I'll go check out that article you linked and see what's there.
Edit: I needed a nap after stressing about all this stuff. I feel better now. I took a look at the linked options. Thanks a lot for posting that. OpenDrive offers exactly what I am looking for. I can purchase 500 gigs annually and use it just like any other drive on the system without any requirement for the data to be kept locally on the startup drive. Perfect. It integrates with Finder and all I have to do is copy up the stuff I want redundantly backed up and I'm all set. I think it may have backup software to do this also but I didn't bother investigating in any detail for now. Even if it doesn't, what it does give me at the price point it does this is fine. I note that you can install it and that gives you 5 gigs free so I think I'll do that to check it out and buy into it later.
I've since learned I need to be more on the ball myself. Dropbox isn't as flexible as I thought. It also requires files be on a local drive that it is syncing with. I'm glad somebody makes an option that just acts as another drive and OpenDrive does offer backup functionality and other features I found too.