If you mean on smartsource it won't work. Smartsource printer goes by your computers internal ip and it collects things like you hard drive software identification as well. If you are talking about some other coupons try a program called Ccleaner. It clears off you info off the browsers cookies as well as the rest of the cookies on your pc. It is simply the best.
Here is the link for a free trial of it.
http://www.piriform.com/business/ccl...trial-download