Although the discussion in these forums concentrates a lot on high end mail order products, there are plenty of cases where you can substitute something cheaper and no one will notice. Others have already pointed out Natty's or S100 instead of Souveran, but when you aren't worrying about something as important as wax, cheap off-the-shelf type stuff will sometimes function fine too. For instance, I use Turtle Wax car wash shampoo. While some may recoil at the thought of using Turtle Wax anything, I will say that it does the (fairly simple) job of making the car clean, and it's dirt cheap. You could spend a little more and get shampoo that has more suds or smells nicer or whatever, but the bottom line is that the customer will never know, and your money is better spent elsewhere. With that said though, here is a list of areas that I don't think you can "skimp on"
Wax - The difference between waxes is sometimes very dramatic, even between high end waxes people will note that some look more clear or reflective or wet. If you buy just anything to wax with it just won't look as nice. You must choose wisely here.
Polishes - There really isn't too much available in polishes from retail companies so that alone should make up your mind, but also consider that the purpose of a polish is to gently remove a bit of clearcoat. Not something you want to trust to just any product, if you ask me.
Microfiber - Anyone who has bought the good stuff and cheap stuff will tell you the difference is like night and day. You can get away with cheap towels (5 for $5 at WalMart) for dirty tasks, but for touching the paint you really do want a set of nice high quality microfiber towels.
Polisher - Leave it for another debate whether you actual need a machine polisher, but if you decide that you do, you definately need to drop the big bucks and get a PC. A cheap $40 WalMart polisher just doesn't have the power to do the job.
Vinyl Dressing - If you get something off the shelf like ArmorAll, it will be greasy and extremely shiney. Invest in something good like Natural Look or 303.
That is everything I determined absolutely necessary to buy quality, judging from own experiences. Maybe some pros will have a thing or two to add as well. Scott P's list was very good, you can't go wrong with those products and they won't cost you an arm and a leg either.
Wax - The difference between waxes is sometimes very dramatic, even between high end waxes people will note that some look more clear or reflective or wet. If you buy just anything to wax with it just won't look as nice. You must choose wisely here.
Polishes - There really isn't too much available in polishes from retail companies so that alone should make up your mind, but also consider that the purpose of a polish is to gently remove a bit of clearcoat. Not something you want to trust to just any product, if you ask me.
Microfiber - Anyone who has bought the good stuff and cheap stuff will tell you the difference is like night and day. You can get away with cheap towels (5 for $5 at WalMart) for dirty tasks, but for touching the paint you really do want a set of nice high quality microfiber towels.
Polisher - Leave it for another debate whether you actual need a machine polisher, but if you decide that you do, you definately need to drop the big bucks and get a PC. A cheap $40 WalMart polisher just doesn't have the power to do the job.
Vinyl Dressing - If you get something off the shelf like ArmorAll, it will be greasy and extremely shiney. Invest in something good like Natural Look or 303.
That is everything I determined absolutely necessary to buy quality, judging from own experiences. Maybe some pros will have a thing or two to add as well. Scott P's list was very good, you can't go wrong with those products and they won't cost you an arm and a leg either.