Keeping your car Shiny!
After using most car care products on the market including the ranges from Turtlewax, Autoglym, Simoniz, Triplewax etc I have found the best polish to be MER put on sparingly but left on for as long as possible, an hour usually does the trick.
For weekly use Car Plan TRIPLEWAX car shampoo is one of the cheaper products but leaves a really amazing gloss. Its worth noting if you have a metallic/pearlescent paint it really is worth checking that it says on the container if its safe to use on clear laquered paint - normal polish has a mild abrasive used to take off oxidised dead paint but this will strip the laquer layer of a metallic/pearlescent very quickly and leave it dull and scratched.
ADDITIONAL USER-EMAILED RESPONSE
"MER is excellent for keeping your car nice and shiny. It certainly does this and also provides a very good protective finish. However, there is a downside: I believe that MER is a silicone based product, but for what ever reason, the problem with MER is that it resists paint as effectively as it resists dirt. Consequently, it is necessary to apply a silicone solvent to clean off the MER and then wash thoroughly before you can properly apply any touch up paint. If you don't do this the paint is not likely to adhere properly."