There is a need for a collection of tips on enhancing your Drupal site for Ãœbercart specifically and e-commerce use in general. This section of the documentation is meant to be a repository for all such tips and ideas. If the section gets unwieldy in the future, I'll break it up into subcategories.
Enhancement ideas can come from emails, forum posts, comments, or anywhere good brainstorming is going on. A lot of these will focus on usability and customer interaction with your site. We want shoppers to buy products from your sites!