I automatically back up my computer using Apple Time Capsule, but a couple of times the backup became corrupted and I lost everything and had to start from scratch. So from time to time I back up to other external hard drives. I’ve only been doing that every month or so, but probably should do it more often because of my photos.
I used to back up my posts from time to time, but now I pay $5 a month to have Sucuri do it for me. Since I post every day, it’s well worth it for my peace of mind.
How often, if at all, do you back up your data?