Gigwalk

Checking in on Foursquare or other geo-location apps can get you more than mayorship — it can get you some pretty sweet deals if you know where to look. More and more businesses are offering up discounts for their mayors, frequent customers, and even passers-by, kicking back a little coin just for visiting. Find out how you can save money, get a great deal, and even make a little cash, just by using Foursquare, Loopt, or these other location-based apps.

• Foursquare — The current king of geo-location apps, participating Foursquare businesses can offer deals and discounts for mayors and frequent visitors, ranging from free frapps at Starbucks to 25 percent off at stores like Sports Authority.
• Loopt — Loopt has been known to offer an automatic 25 percent off purchases at Gap and deep discounts on Virgin America flights, and even show you available rewards near your current location. Now it's even integrating Groupon's Groupon Now deals into the app, so you can find great deals on the go.

See the rest of the list (there's quite a few) after the break.

Need some extra cash? Always out and about in your town? Then Gigwalk is for you. This app allows you to perform "gigs" at local businesses (like taking pictures of menus, food items, or document venue or store information) and earn a few dollars for your time. It's like getting paid to explore your city, and what can be better than that?

Local businesses can post gigs in order to entice you to visit, then ask you to record store info or features. In exchange you'll earn a few bucks, and some "streetcred," which allows you to earn bigger bounties for your hard work. All payments are made through your PayPal account. It's a free app for your iPhone, so there's no real reason why you shouldn't download. And if you're a business, you can easily get on the Gigwalk train and get people in your doors.