At Staples/OfficeMax, they got this shit where if you bring an empty ink cartridge, they give you a $3 credit on their Card. The catch is, you can only bring 3 cartridges a day. You can get around this by getting cards under fake names (you'll have to go during different shifts/times though, so you aren't recognized), having family members get cards,and going to different stores. So if you have access to empty Ink Cartridges, you can make alot of $$$ off this.
Say there's 5 different Staples Stores in your area (within 15 miles), and you go to each twice a day (under different names), that's $90, in under 2 hours (I say 2 hours cause that's roughly the amount of time it will take to get to one place to another, plus the time you spend in the store).
What I'm trying to figure out is...where to get the empty ink cartridges?
I'm thinkin of goin Downtown tommorow, to like Kinkos or some other Printing Businesses, and digging in their dumpsters for empty ink cartridges...am I wasting my time?
EDIT:
I just found this recycling company:
http://www.planetgreenrecycle.com/
I'm stilll trying to find out the pros and cons, this might be better than the Staples hustle.
This is a great idea.
You can go to different businesses in your area and tell them you are collecting empty ink cartridges for non-profit. If they save the ink for you will pick it up free of charge every month or 2.
Create a little box that they can put near their printers that say "EMPTY INK FOR CANCER" or some shit. Some business owners will eat this up. Roll by each business once a month and you will be set.
In a couple months, you will know which businesses will save them for you and which ones will not.
Good luck
Peace