OT: USB Memory Sticks

I used to use a 128MB memory stick to hold all of my REI information on, but it got filled up quickly. I also housed XAMPPLite on the memory stick to hold all my database files. Everyone so often I would back up the data, and luckily so, because every so often the data would become corrupt. I have since moved up to a 1GB memory stick to hold the information, and still do backups. Today I found out over half the data on my stick was corrupt, and my last backup was over 9 days ago. Ugh! So now I've essentially lost 9 days of data for my business. I'll need to become more attentive on running my backups on a more consitant basis. :-(