A super simple script that creates a shelf button which, when pressed, will reselect all of the currently selected transforms.  If any attributes are selected in the channelBox only those selected attributes will be recalled.

Holding the shift or control key when pressing a quick select shelf button will add to or remove from the existing selection.

Note that the script needs to be sourced for the quick select buttons to work.... read more »

New with Maya 8 is the ability to bookmark curves in the Graph Editor.  This script extends that functionality and packs into a nice little UI while adding, among other things, the ability to filter displayed curves by attribute.  

As a bonus, it also works with Maya 7 (and maybe Maya 6 as well).... read more »

I've been using this for a while, and I find it pretty useful.  It's a tool to help you zoom quickly in and out of the timeline.  I know, it doesn't sound that great.  But it is.

Oh, how it is.... read more »

A script that will quickly delete all excess flat tangents keys on selected animation curves.... read more »

This script will drop a spotlight or camera at your current persp cam location with the click of a button.... read more »

A modification of the tangent marking menu (shift+s+MMB in the graph editor) that adds two new options.  "Lock Tangents" in the SW corner of the menu will unify selected tangents and lock their weights, and, in the SE corner, "Free Tangents" will break the tangents and free their weights.... read more »

A simple little script that creates a shelf button to toggle your default curves between step and spline.

A script that helps you to easily modify and copy attribute values on multiple objects.  I used this in particular with a paintFX hair setup, where I was modifying multiple attributes and I a) didn't want to keep hunting through the Attribute Editor and the huge attribute list in the channel box to change a few key attributes, b) got sick of flipping between nodes in the Attribute Editor where I only wanted to change one value (like displayPercent), and c) wanted more granularity than the pfx Apply Settings and Share Brush methods offered.... read more »