We all know that we can get 22GB of free storage in copy.com (using referral code + a twit ). But many of us don't know that we can use this storage space as a nice backup space for our Low End Boxes. Here is how
create a new copy.com account (you can use my referral code https://copy.com?r=Tbcrni and both of us will get 5GB for free )
Now install a headless version of copy.com app in your linux vps. It's memory footprint is really small. And because of being headless, it can effectively run in the background using nohup
you can find a tutorial here: http://hasin.me/2013/10/02/saving-a-huge-bandwidth-cost-in-wordpress-using-headless-copy-com-linux/
Now run the headless version of copy.com client (notice the location of the app for 32bit and 64 bit version of OS)
Keep your backup files in copy app's home directory. It will be instantly synced to copy.com
That's it. After you fill up all your 20GB, just unlink this account and maybe link a new account. Your old backups will stay forever in previous copy.com account.
Now some of you may say that what happens if somehow the files are deleted from the VPS because copy.com App will sync that change. But guess what, you can undelete files anytime from copy.com :) If you are smart, it will work really well.
Hope it helps :)