I love y food processor, and use it for so many things. It is awesome for chopping up ingredients like apples, carrots, or green peppers, and for crunching up crackers to use for breading , and I love it for making cole slaw, as well.
I actually have two food processors. My big one is a kitchen aid, which I found on Craigslist, and use for big projects. I also found a small processor that fits right on my Oster blender, and this is the one that I use all the time for every day things. It doesn't do as much as the kitchen aid, but it is so handy and easy to use, and since it is so fast to process things, it is actually much faster than getting the large processor out, and all the cleanup afterward.
You can find the blender attachments in thrift stores, yard sales, ad also on eBay, and they are usually pretty cheap to pick up used.