Some schools accept donations of empty ink cartriges to raise funds. I would like to help get my son's school started with this too but not sure where to go. Is there a good company to use? There seem to be quite a few online.

We are in CA / bay area if that helps.

I am hoping to do this for fundraising, the budget is very tight and schools had to make many cuts that affect kids directly.

I'll keep office depot in mind, but I'm looking for some of the money for cartridge programs.