Attend a play.
Attend a symphony
Give the kids $1.00 each and take them to the store to buy an ingredient for dinner.
Go on a walk and at every corner flip a coin, head you go left, tails you go right. You'll never know where you will end up!
Grow a garden. Assign each kid a vegetable and teach them the keys to a great harvest.
Have a back to school party.
Have a lemonade stand.
Have friends over for a movie night.
Have the kids design their dream house or dream car.
Have your own water park in your back yard.
Hold a tea party.
Instead of paying a lot of money for summer camps, have a group of friends teach the summer camp classes and trade.
Learn about your state's history.
Learn to tie knots.
Make a bird feeder.
Make a homemade sundial.
Make a movie.
Make a pinata.
Make an obstacle course.
Make bean bags.
Make cardboard huts.
Make homemade butter.
Make homemade pizza.
Make homemade popsicles.
Make homemade puzzles.
Make your own kite and fly it.
Organize a neighborhood circus.
Participate in your local library summer reading fun.
Show them how you ride a public bus and go somewhere fun.
Take a family bike ride or roller blade trip.
Take dad cookies at work.
Taste test your kids cooking creations.
Teach your kids to do their laundry. You can have a sorting contest.
Visit a different park each week and go on a picnic.
Write on your windows with washable window markers and then have them clean your windows.
Write stories together.