I just tried to use Google Offers to buy something ($100 massage for $50). Google Offers would only let me pay through Google Wallet. But I don’t use Google Wallet. So I went to turn Google Wallet on in my Google account, and it wouldn’t let me turn it on because it didn’t like the cookie settings in Google Chrome. I block cookies from third-party sites, which I believe is the default setting, but I added an exception to allow cookies from google.com, and it still didn’t work. No cookie settings approval means no Google Wallet, which means no Google Offers, which means no half-price massage.
This is not how a service works when its developers actually want it to succeed.