right now i myself would go with a flash drive if only a few gigabytes. stored in maybe a lock box if say its pictures or important info. My big thing is multiply places online, offline. but alway keep changing with the times here these people storing data on zip drive ten years ago u don't see to many zip drives anymore or floppy's its doable u can still get them but not quick to get data moved to another media.
Agreed. If all you need to backup is a few G then put it on a memory dongle, buried deep on a server drive, on a g-mail drive and anyplace else you think no-one will bother it. Redundant backups are better than not.
I regularly use CD-RWs and DVD-RWs for backing up smaller folders. I store them in a different location than my machines. I use external HDDs for backing entire HDDs and large folders of data. I use USB sticks to sneaker-net files that I routinely modify or update to get them from my desktop systems to my laptop. Static, or even improperly disconnecting USB sticks from my windows systems can corrupt/lose the data they hold. Just my thoughts.