You COULD get an external drive of some kind [USB stick or regular drive] and offload some of your files on to that.
They sell 8Gb/16Gb/32Gb USB sticks all day.
Do you have a lot of image files or music files?
Re external hard drives/backups. I'm looking at Amazon, Seagate, 2 TB drive for $150. Something like that?
BTW, thank you so much for your help.