I took my massive shredding task here!
vanishdocuments.com
The website gives good instructions on what they will and will not take, but when I got there I had not removed bank statements from the Kraft envelops we use to store them in and the nice guy said he would shred then this time but they usually don't take things in Kraft envelopes or in binders (I didn't have any binders)!
Also, the person I spoke with on the phone said there would be some to help unload my truck, but that was not so, so be prepared to put your boxes on the dock by yourself or bring someone to help!
Anyhow, it's easy to find and went really quick and I didn't have to sit for hours shredding n 4951