Poor_Skills in Philadelphia?

Poor_Skills in Philadelphia?

Does anyone have any advice on how to do a poor_skills vacation in Philadelphia? We are going on Wednesday the 9th through Friday the 11th. We have free tickets to Sesame Place, which we are doing on the 10th, and have a military discount for our hotel that brought it from 109$ per night to $85. The room includes Continental Breakfast, so that would take care of one meal per day. It also has a swimming pool which will give our kids something to do at night. We really wanted to do the zoo or aquarium, but JUST for admission its looking at like $70 plus, which doesn't include the ridiculous $12 for parking. I have heard of coupons floating around for them, but I cant find them, anyone know where I can get some? We were thinking of doing that on Wednesday, and then perhaps the Walking Tour on Friday. Any other suggestions are welcome and encouraged! (We have a 2 and 3 year old so kid-friendly ideas are great!) PS. We wanted some good casual (inexpensive) dining. Does anyone have any suggestions? Thanks!
Mantel ideas

Mantel ideas

Herb Italian Bread!

Herb Italian Bread!

The tomatoes have deigned to join the party

The tomatoes have deigned to join the party

Seedlings

Seedlings

Wildflowers all over my neighborhood.

Wildflowers all over my neighborhood.

dining area help!

dining area help!