Another one of the "small but useful" features provided with the power tool extensions that I find myself using a lot is the “triple click” feature. 

Today with VS you can double-click on a word to automatically select it:

When the “Triple Click” extension is enabled you can now also triple-click on a line to automatically select the entire line:

This behavior has been supported in Word for awhile.  Until I saw that there was a power tools extension for it I didn’t actually realize that VS didn’t already do it by default.  Well – now you can.