My backup is a Drobo NAS (which is RAID like) with 5 SATA drives and double redundancy -- I can lose two drives at once and still have all of the data. If the controller fails, I can move the 5 drives to a new controller. I am backing up all of my data and documents daily. Right now it is a mirror except with no delete. I plan to change to a weekly full plus daily change dumps (probably a three cycle) and then I will have multiple copies on the NAS.
Light bulbs you shouldn't buy
There are plenty of dimmable LED light bulbs, but make sure you don't buy the ones that flicker when you dial them down.