_Here are some other uses for the ingredients used to make the cleaners in this instructable:
Use water and baking soda to make a paste to clean especially nasty messes - a greasy stove top, a spill in the oven, your toilet bowl.
Vinegar and baking soda can be left overnight in the toilet bowl and then scrubbed in the morning - gets rid of stains and odors.
Baking soda sprinkled in littler boxes and mixed in helps control all those urine odors.
Straight vinegar is awesome at getting rid of hard water stains in showers... simply put it in a spray bottle, spray down the walls and let them soak for a few minutes, and then grab a brush or a streak free cleaning cloth and get scrubbing!
You can use castile soap as a cheap but effective hand wash - just fill an old soap dispenser with half water and half soap. It might not suds up as much, but rest assured - it's still doing the job.