The Perks Chrome Extension can be used to get notified of any upcoming offers or promotional material when you visit a partner website. It will even notify you about pending purchase offers that are open and waiting for you to make a purchase. You can select the community you want to get notified of on your profile. 

For instance, let's say you are a community for pets. You can now choose the community you are a member of to be notified every time you visit a website with a purchase offer or a community related to that website.

With this extension, you can create an account with a login and password for free. There is no need to enter payment information. Your information will not be stored, even if you complete your purchase.