How many days until a birthday, vacation, or a visit from grandma? Cut strips of paper to match the number of days. Then make a string of interlocking rings by glueing the ends of the strips together. Have your child yank one link per day from the chain so he can visualize how much time is left.
Write an activity on each strip, and make a chain with one link for each hour of a road trip. Your child will be occupied AND have a visual answer for Are we there yet?