Here are a few unusual cleaning recipes that I've picked up along the way that I thought were very interesting. I haven't tried them all, but I've been assured that they work!
To remove the sticky residue left by price stickers from non porous surfaces, dip a soft cloth into some peanut butter (smooth, not crunchy!) and rub the sticky mark in various directions. The oil from the peanut butter should remove the sticky residue without damaging the finish on non porous surfaces such as metal, enamel, and paint.
To clean glass to a sparkling finish mix one quarter of a cup of ammonia in a bucket of water. Wash your glass in the mix and dry immediately. This mix is also great for washing windows.
To remove rust from old metal work rub with fine steel wool dipped in vegetable oil. The finer the steel wool used, the less noticeable any scratches will be.
To remove tarnish from copper and brass work, while retaining it's aged charm, lemon and salt can be used. Add a little lemon juice to a small pile of salt, take a cloth and polish the copper or brass. After removing the tarnish, rinse, and dry thoroughly with a soft cloth.
To clean enamel surfaces without damaging the enamel use a mixture of baking soda and a little water. Rub the surface with the mix and any brown stains and dirt should be removed.