"Groupon Now" hasn't started in Philadelphia yet, but if you're traveling, you might want to check it out.
You just download the app, or go to the site on your mobile browser. If you're not GPS enabled, you type in your zip code and you'll get a list of deals nearby that are available immediately.
Deals can include restaurant deals, entertainment deals and more and they're available to use right away when you purchase them.
To find out how it works, click here.