What a fantastic idea!!! I love dollar store finds!!! I came across this on Filth Wizardry. Very creative and EASY too! Just tape a shower curtain liner from the Dollar Store to the floor and draw out a map. The kiddos can color it and then use their "cars" on it too.
It would be a fun idea to draw out your plan for the next day. Maybe a trip to the grocery store, the library and the park. The next day to Grandma's house, the school and the mall.