Add here strings (not a filename) that forces a page not to be cached. For example, if your URLs include year and you dont want to cache last year posts, it�s enough to specify the year, i.e. �/2004/�. WP-Cache will search if that string is part of the URI and if so, it will not cache that page.

WP-Super Cache - http://wordpress.org/plugins/wp-super-cache/

Very helpful for when your site gets big and you have traffic. It will significantly help your site.

Customers will have trouble with cached pages that should remain dynamic. Like the cart area.

If you go to the "advanced" tab you will see this description:

Quote

Add here strings (not a filename) that forces a page not to be cached. For example, if your URLs include year and you dont want to cache last year posts, it�s enough to specify the year, i.e. �/2004/�. WP-Cache will search if that string is part of the URI and if so, it will not cache that page.

My cart area address for instance is this:
http://www.clipartillustration.com/customer-licence-and-file-management-area/

So in the box I could take from the url customer-licence-and-file-management-area and simply paste that

 - the Caching plugin will leave that page "dynamic" and so your customers won't always go to their cart saying "Where is the stuff I added!!!" or worse come back to it and wonder "Where is the stuff I bought!"

There are also things I will write into the theme to make this plugin more compatible since its a wordpress standard solution to site speed and resource saving.