I don't back up every hour, or day for that matter either.
Pretty much, only if there is some major update or testing that I am doing, or if there is something that I add that I would be devastated if I lost, then I do a backup.
Otherwise, I perform a Time Machine backup and a clone around once a month.
This won't work for everyone, but for me, it has worked, apart from once, when I lost a music project I was working on that I thought I backed up but didn't.
Now, any time I make a change to any songs I'm working on, I do a quick backup.