Run Craig's List "WANTED 4 Cash" ads in the wanted section and tell them what you want. Be sure and use some photos in your ads. You must do this for a month to see results, but it often results in bargains because you're probably the only buyer making an offer.
A good thing that you can do in order to find the right car parts is to build a strong relationship with a local seller. Even though, these traditional stores selling auto components may be coming down significantly, but they are still valued by many consumers who seek knowledgeable services and a wider inventory. The fact is that the sales team in a large store mostly don't have the expertise and knowledge that the staff in the local auto parts store can have. You can also get better pricing, warranty, exchange options and high level of customer service at these stores.
For example, a person that lives in Maine may need a certain part for the engine of a 67' sports car. Finding such a part in that person's town is highly unlikely due to the low number of models of that car still in existence. However, using the internet, that same person may be able to quickly find sellers from states as far away as California and Hawaii that do have that part. No travel is required either. The part can simply be shipped for a relatively small fee.
The Steeler defense in a group effort where everyone is good but nobody is arguably outstanding. Joey Porter (10.5) and Cliff Haggans (9.0) own half the Steelers sacks and Chris Hope leads the secondary with three picks, only Porter and Troy Polamalu even have two. The Steelers were #2 against the rush, #10 against the pass and #8 overall.
Popular models are good for many reasons. Most manufacturers produce a basic model with no major changes for years. Think of the 1973 Chevy pickup truck for example. The basic design didn't change much until well into the late 80's. That's a LOT of interchangability, and a huge volume of parts that can be bought aftermarket very cheaply. It also means the picking a niche will be chock full of these popular prolific vehicles. Other examples are the Ford Escort, Ford Taurus, Chevy S-10 pickup, Toyota Camry, I'm sure you can think of more.
The exterior cleaning products that you may find at your local auto parts stores, will normally have some of the same uses all across the board. One of these is the shine factor. You want your car to look good going down the road. Especially after you have put the work into it that you have cleaning it. You should look for products that will give your car a good shine as well as make it look great. You may also find products that will take care of your chrome or metal pieces. This will help your car look even better going down the road for the first time after it's been cleaned.
Junkyard - it might sound a bit weird, but it could be one of the places where you will easily get auto parts which are not available in the market currently. These parts may not be manufactured any longer or are not available at all stores. The best part is that you might get a really costly product at a really low price.