[support] Confessions of a Drupal Hacker 1

I know PHP/MySQL and I am learning Drupal. I like it very much, but there are some things which I have not found a way to do so I just code them myself in PHP.

Here are two examples to start:

1. A Contact Us page which returns the data submitted to the user. I mean that the page displays the email and message submitted.

2. A nested navigation UL based on a taxonomy vocabulary. What I mean is that I have an estore and the categories of products are stored as terms in a certain vocabulary. I want to display links to each category page as nested UL lists, so that Shoes is one link and inside of it is another UL with Men's Shoes and Womens' Shoes, each also a link to that category.

These are both things which I recently coded in PHP for sites. Just wondering if there is a better way to handle such things.

Thanks.