Python / mS_AssignExpressionsToKnob
If you're like me, and get all your expressions from smart people online, then this tool is for you. This adds a new tab to a selected node in Nuke with pre-loaded expressions that you can choose from. I have added the expressions that I use the most, but if you have some cool ones then please email me and I'll do my best to add them in the next version.
A more detailed explaination of these expressions can be found here
How to install
Copy the contents of the folder to your .nuke folder
Then paste this in your menu.py