Over on the dpreview Canon forum, sbj asked, "The 16MB card that comes with the camera seems worthless?! i was only able to take one photo - how 'bout you guys?"
I store a PDF version of my camera manual and some editing programs, like Irfanview and neat images to take into Internet cafes whilst I'm travelling.
You can usually download PDF versions of camera manuals from the vendors Web site. eddyb replied:
Another use is if your wanting to print some 4x6 photos at a Costco, Walgreens or Osco you can dump a bunch of JPGs on one.
Film print locations sometimes lose negatives (memory cards), so using a cheap card means you don't have to worry about losing a more expensive one. Forbes adds:
This is easier than burning a CD with the images.
Tom O'Neil replied:
I have an 8Mb CF that is extremely important. It carries the firmware file for my Flashtrax [aka PhotoTainer]. If the Flashtrax freezes up when I'm on a two-week trip, I lose access to 30Gb of storage. It happened two weeks ago when I was on a ship. So far a firmware reinstall has always restored the Flashtrax to functionality.
The PhotoTainer/FlashTrax firmware file is about 1.6MB.