Plugins for jquery I wrote.

Autotab.
A very simple way to add autotab functionality to your input elements, by simply adding a class of .autotab to them along with a maxlength attribute.
Input file
Always wanted to know how to style those pesky input[type=file] elements, here is how.
Warning, UI wise it is not always safe to do this...
Pagination
Not really a plugin but a small script, but it does pagination, sorting and zebra striping of your lists.