Reuse Buckets, Jugs, Bottles

Ice cream buckets - What handy little things.
For the beach (seal little sandy shoes in it after you use it to build castles), organizing toys
crayons

Bucket ice cream is cheaper and you get a bucket too.

Gallon milk containers
No-spill measuring
Store uncooked rice and other small grains, nuts, popcorn and seeds in a 1/2 or 1-gallon milk carton and it will be easier to measure out. Be sure to thoroughly clean the carton first.

Storage container
Tired of flimsy plastic bags? Use a 1-2 or 1-gallon plastic milk jug for storing everything from coffee beans, sugar, lentils, split peas and jelly beans

Piggy Bank is cute too

2 Liter soda bottles
nail a hole into the top fill bottle with water=free water gun!
Bowling pins, put a little water in the bottom for stability
Reduce water use in your toilet tank by adding a soda bottle full of water.

reuse list of ideas

http://www.geocities.com/lindaslists/Reuse.htm
milk cartons

http://www.plantea.com/milk-jug.htm

http://www.greendaily.com/2008/05/02/5-ways-to-reuse-two-liter-soda-bottles/

I love that being cheap is also being green.
It's cool to say I'm green rather than I'm a tight wad. ;)