Sleep in (just a little later)
Call car dealerships, tell them requirements, wait for list of possibilities
Revel in the joy of summer vacation
Lounge about
Eat something
Play with cats and dog
Go outside
Photograph stuff

Check out a page from this wonderful children’s nighttime book, An Awesome Book, by Dallas Clayton:

You can see the inside of the rest of the book here, and order it here for only $15! Sold!