How many times have you gone to the jQuery UI themeroller page, scrolled down to the bottom, hovered over the icon you wanted, and then looked at the hover tooltip to find the icon name?

If you are using jQuery UI's Autocomplete control, your IE6 users may experience some issues when the autocomplete suggestions overlay a HTML <select> list. The autocomplete suggestions show up behind the select list in Internet Explorer 6.

The new autocomplete widget in jQuery UI 1.8 is a nice addition. While it works great for basic purposes working with ID / value pairs is not so nice out of the box.

Here's a simple tutorial showing how to use jQuery UI's sortable plugin to update a database table's sort order field on the fly using ajax.