Use Groupon! I think Robb may have talked about this -- I don't remember where I learned it, as it was a while back, but you can find proven, winning offers on Groupon.

I shot a quick video so you can see what I'm talking about:

https://www.loom.com/share/b6bdfc03c10f4e8db173c9c713f20f65?sid=af9ba246-e157-49d7-b2fb-1e9a453537d0