Lifescript Advantage click throughs: payout is 25-45 miles if you do them on the Peanut Labs surveys page instead of 15 miles on the e-miles home page. They're the ones that will offer a sample of toothpaste or shampoo or such.
You can often get one of these a day by going through a Chrome incognito window. Fill out an e-mail address (does not have to be tied to the one you signed up with as far as anyone's ever figure out) and then the page with address and such. I think I actually did get a sample of Excedrin from them once in the mail but it's not really about the samples, ya know?
Do like one or two of the 'do you want more span: yes or no' and then just let it sit for a few minutes. Once you get past page two, it will either credit shortly or not without going through the whole thing to the end, and no one in the GPT game has ever really been able to figure out why.