You could use some of her artwork as wrapping paper for presents. Maybe scan a lot of it and throw out the originals but keep just some of the originals. I know it's VERY hard to do but I had to do the same thing cos it does just get to the stage where you have nowhere left to put these things. Maybe even get your daughter to help you pick her absolute favourites to be kept and frame a couple to hang?? This way she knows you haven't done what your mother did and also you have the rest on a special disc or something off the computer.