OK, so I am using WP for a big site. One problem I always have had is sorting out the content, i.e. site navigation. I resorted in the past to using basic category pages as menu items. But, only found out last night that you can easily, no plugins required, set up custom category pages. Then for each category page you can edit the template so that you showcase your best stuff in that category before all the latest posts for that category.
How do you do it? Just save a new category file as category-1.php for the first category, and so on. Then edit the part above the < ? php single_cat_title(); ? > and you have your own special category pages.
Very handy if you want people to see your most popular posts / pages first, or even add targeted advertising before the lists, or anything you fancy.
This is so simple and yet few people seem to know about it. I am updating my category pages as we speak! Very excited.