What is a good backup strategy for home?

I recommend a NAS drive for your home network and setting up network shares for each user to backup (manually or scheduled).

Free backup software at various levels of sophistication is available in abundance (if you buy a NAS drive, such software is usually included).

If you buy a pair of NAS drives, you can easily keep them synchronised as an additional safety layer. In addition you may archive really important data (e.g. photos, videos) on DVDs. or on Cranberry DiamonDisc (the 1000 tear DVD :)

And don't forget, whatever you use, MAKE SURE THAT YOU CAN RECOVER THE DATA.

This does not mean check that a back up file is created - it means actually restoring the data to another machine and then using it.

Don't keep the backup on the same machine you are backing up?

...

ehh, for home use, if there isn't that much, I would recommend using a service such as Dropbox or Mesh.

If however you have a lot of stuff, get an external hard drive.

Windows backup is very good and you can take an entire image of your machine and store it on the drive.

If however, you just want to do file level backups, take a look at Fbackup... a client of mine uses this and loves it - personally, I just like doing it manually.

Just remember to do it regularly.

If however you have a hell of a lot of stuff, you may want to take a look at getting a NAS and bunging in a few hard drives and then centrally backing up all computers to that.