After building a number of WordPress sites, I’ve found a few plugins that make my life a LOT easier. The developers below have put a lot of effort into making WordPress the great system it is today. Be sure to rate plugins you use to help other developers find plugins that work.
Plugins are listed in no particular order.
AJAX Thumbnail Rebuild by junkcoder Sometimes you need to change an image size in your theme, but you’ve already created Posts with images displayed at another size. This plugin rebuilds all images so they display at the new size without the need to update images by hand. This plugin is a must have during theme development.
Form Manager by Campbell Hoffman A simple contact form builder. Makes building contact forms easy.
Gecka Submenu by Gecka Apps Menus in WordPress are a little disjointed. Pages are created and ordered in one place, but menus are put together under Appearance which is only accessible by admins (by default, this can be changed though). Gecka Submenu puts the power of menu creation in one place, when you edit or add a new Page, which is where it should be. With Gecka Submenu, once the top level menu is created, all child pages can be added by simply setting their parent. When the top level menu is set up under Appearance -> Menus, a new setting appears “Automaticaly populate with child pages”. Check this setting and your clients don’t need Admin permissions or your help to add pages. See Simple Page Ordering plugin below for another way to make menu creating easier.
Limit Login Attempts by Johan Eenfeldt Being popular sometimes has its downfalls. WordPress sites are going to get attacked by hackers because of its numbers. Limit Login Attempts is one of many security levels I add to all my sites.
Simple Page Ordering by Jake Goldman Drag and drop to reorder your pages. No more setting Order on each page by hand! When used with Gecka Submenu, menu creation is easy and straight forward.
Widget Logic by Alan Trewartha Want to put a widget on just posts, just pages, just your homepage, etc? With Widget Logic you can add WordPress Conditional Tags to each widget to determine if it is displayed on a page or not.
WordPress SEO by Joost de Valk Give your clients full control over their SEO. This is a great plugin with lots of nice features.