Yep, I'd keep them!
For now, since you're pretty tired of them, I'd put all the solids in one bag and all the prints in another and stick them in with my other scraps. One of these days you'll want them.
OOH.
I just had an idea. I know you're sick of them, but would it be possible to use them as layers or as part of a thank you note? I don't know what type of event this invitation is for, but if it's for something that your friend will need thank you notes for, that might be a really nice way to use all those scraps.
I may have just made a whole lot more work for you...sorry!!!