My favorite joke:

A boy and a girl are standing on the edge of a cliff overlooking the ocean.
They've just finished pushing their mother over the brink...

The little girl turns to the little boy and gleefully says, "Let's go down and look at the mangled body on the rocks!!!"

The little boy looks scornfully at his sister and replies, "Don't make me laugh! I've got chapped lips!!!"

Drive around at night looking for interesting window displays or traffic lights.

Have a rambling conversation about Eddie Constantine over a bowl of udon.

Find an all night furniture store to explore.

Wander through Home Depot and play with the PVC pipe... compare the tensile strengths of various types of glue.

Standing on the corner, screaming at cars.