IDrive sends you the drive, pays return postage (in the US), but it's still free once a year for personal users (three times for business plans.) Read more: IDrive cloud storage review.
TL;DR: Until October 27 at 11:59 p.m. PT, you can get a 1TB portable hard drive and 1TB lifetime cloud storage for $89.97. Files really do build up over time, and some of them are hard to delete.