Aww this is a nice idea!
I like to see live performances-it can be a concert or a restaurant that has live music/bands
I've said this before-I want to go paintballing, 4 wheeling, and/or dirt bike riding as like a double or multi date
I lovvvvvvve walks in the park. It's free, and it's a great way to spend quality time
D&B or any other game place where adults can hang
Dinner and a movie is cool, but I like to try new places and eat food from new cultures
Museums (anyone near philly-you can visit the PMA on first Sundays for a donation instead of the usual ticket price)
Groupon! They always have things for mixology classes, cooking classes, rock climbing, etc.