I prefer Copernic Desktop myself, but I really liked his very simple rules for computer use. I especially liked this one:
Don't customize, optimize, or tinker - the result is never worth the effort.
I'm notorious even to myself for tweaking my computer, desktop, folders, etc.
I'd probably add, "Never make any changes to the computer after 11 p.m."
I also like Reinhard's Weekend Luddite system, though I usually need Sunday to back up the PC, run various maintenance programs, etc.