RS Tool Pack is free and comes with some great everyday tools.
Erik Lehmann’s Rocket Square offers a free set of python tools for Autodesk Maya that everyone needs in their everyday workflow. RS Tool Pack comes with a renamer tool, an easy way to add checker patterns to objects, a simple distribution tool, and a tool that lets you easily select every nth edge.
RS Tool Pack is Free.
Lehmann created the tools to be compact and helpful in everyday workflow. The rename tool alone is a must-have, but the pack also comes with an easy way to apply a more advanced checker pattern than the default Maya one. Download the tool pack for free here.