I borrowed this oscillating tool from a friend at work and it was a LIFE-SAVER!

I just put a piece of scrap flooring up against the door jam, set the blade on top and started it up. I just kept pressure on it and moved it left to right until I cut through the door trim.

Knocked out the cut piece with a hammer and screwdriver . . .

and slipped the flooring underneath!  It really was much easier than I was anticipating and it looks marvelous!!!  I need to ask for one of these tools for Christmas!!!  Jason . . . . Amie . . .  😉