The tools:
Calc
Calc is a small calculator. It's not like a normal calculator but gives to you fields, one to write your problem and the second to show you the solution (who really uses the + and - buttons on a computer calculator anyway!). The advantage of this is that you can assign names to numbers and use the name! Eg. Height = 125px. Margin = 10. (Height * 5 + width * 4) * 2 = 1580.

Clear Cache
It does what it says it does. It quickly clears all your kind of cache. Eg. when working with scripts that doesn't work well with After Effects cache-system it's always handy to be able to clear the cache quickly.
 
Color Matcher
Match two videos with each other in only 4 clicks! Select the shadows and highlights in both the videos and Color Picker takes care of the rest! What also makes Color Picker special is the ability to dynamically change the colors of the video (check xx:xx in the tutorial-video for more information).
 
ExpressIOn
Turn expressions on or off with a press of a button! Do it on selected properties, property-groups, layers or all comps in your project! ExpressIOn also is great if you accidentally break an expression, like deleting a layer and undoing it. Just press the button while holding down Shift and your expressions will be back on track!
 
Expression Baker
Having a lot of expressions can really slow down your work. Bake them to speed up! Select one or more properties or layers and bake everything! Your expressions are of corse saved. Just delete the keyframes and activate the expressions.
 
Link
Link can be described like parenting but instead of inheriting properties, the properties are linked. You can link anything to anything! The position to blurriness. The masks expansion to the fractal noise's evolution. Really anything to anything.

Home Page - http://aescripts.com/tiny-tools/