Encrypt files then backup to a cloud service via script
Most cloud services tell you that their data stores are safe, that your data is encrypted in transit and on their drives, that employees don't have access, etc. For the vast majority of the stuff I store in the cloud, this is more than good enough for me—the data isn't overly sensitive, and if someone were to hack their way in, all they'd get are a bunch of work and personal writing files and some family photos.
For other files—primarily financial and family related—those assurances just aren't enough for me. But I still want the flexibility and security that comes from having a copy of these files in the cloud. So what's a paranoid user to do to take advantage of the cloud, with added security, but with a minimum of hassle?
The solution I came up with involves using local encrypted disk images and a shell script. Using this script (and some means of scheduling it), you can automatically encrypt and back up whatever files you like to a cloud service.