This isn't nearly as deep as what everyone else said, but on a purely material level -- removing all traces, etc. -- I would suggest that if there are actual physical items around that maybe she gave you or whatever and you look at them and it hurts, that you just box them up and put them away somewhere for a while. Don't get rid of them, because someday you may remember how much you liked something, and the pain will have eased and you'll be able to get the item(s) back out and remember the good times. It sucks -- take it from one who knows -- to throw something away (take it to Goodwill, whatever) in a fit of relationship angst and then, months later, wish that you still had it, whether because you just liked it or because it represented what was best about the relationship.