Websites with daily deals for capital cities (Spreets, Scoopon, Ouffer)
The way they work is every day they have a new offer for most capital cities (some offers may span a few days - particularly over the weekend). They all seem pretty good value if you want them. Have deals like $50 worth of food/drinks for $20, etc).
The websites I know of are:
You can sign up to get emails of their latest offers. I've bough a few things and have been happy with them.