What files can be safely deleted?

I love my 400 MHz TiBook but its 10 GB hard drive is filling up. I have approx. 1.5 GB of free space left. What files that can be safely deleted? Can I delete extraneous printer files, modem files, packages, etc? I use MacJanitor to clean out caches and I don't have any music or photo files that might be causing the bloat. Also, before I delete anything I will back my hard drive up to a FW drive with SuperDuper.

Hi, Fred. You're wise to be thinking about how little free space you have left now, before the operation of your Powerbook is seriously impaired. But rather than just nibble away at the contents of your drive, which will only buy you a small amount of time before you're back where you started, you should be thinking about replacing your tiny 10GB hard drive with a larger one. You could easily get a 60GB drive for $50 plus the cost of shipping, and installing a drive in a Tibook is very simple — a 20-minute job at the outside. Then you'd just start up from the external FireWire drive on which you've cloned your 10GB drive, and use SuperDuper to clone its contents onto the new drive. The whole drive swap and data transfer, including the original cloning, could probably be accomplished in less than two hours. Then you wouldn't have to worry about hard drive space for a long time to come.
For expert guidance on what you can do in the short term to regain disk space, see this.

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