Products already purchased.

Searching through the store, it would be nice to be able to exclude products I have already purchased, as well as those I don't need. i.e. I have PDFpro2, ZIPpro3 and Multimedia bundle. I don't need to see PDFpro, PDFfree, ZIPpro, ZIPproFree, ZIPportable, Snap12, SlideshowStudio4, PhotoOptimizer8 or PhotoOptimizer2020 as being available to me in the store.