EZKey – This script will allow you to set and remove keyframes on default transform nodes (translate, rotate, scale) using a simple interface (Python).
Mirror Pivot – This script will allow you to mirror a mesh from its pivot, with the options to make a copy and combine (Python).
Pivot Control – This script will allow you to quickly move the pivot of the selected geometry using a simple user interface (Python).
UV MARS – I found it very frustrating working in Maya’s default UV Editor so I decided to incorporate scripts into the editor window (Move, Align, Rotate, Scale). This script provides a lot of functionality that speeds up my work flow when working with UVs. I hope you find it useful as well (MEL – currently working on updating to Python).