Some random stuff I like to do with my 5 year old daughter.
Story time at Leu Gardens
http://www.leugardens.org/events.html
Lake Lotus Park is awesome. The park rangers there are really nice. There's a big play area, trails and a dock to fish off of too.
Capehart park has a splash play area.
http://www.orangecountyfl.net/dept/cesrvcs/parks/ParkDeta...
I actually went onto the Orange county parks and recreations website and searched the parks by amenities.
I also started doing crafts... The craft store has some really awesome wooden models (cars, boats, choppers etc.) all for a dollar. My nephews love them.
It's not really about the money. Most kids will be more happy with the time you spend, not the money.
Let the count down til school begin!
Good luck and God Bless!
H. H