Pine Floor Fix

I had an idea a couple of weeks ago and I have used it twice since then.  I refinish any pine floors that I have as opposed to carpeting.  More times than not when the carpet is removed there will be a bad spot or worse yet a hole of size in the floor. In the past, we have searched high and low for pine boards in an attempt to match what was there.  This has usually been expensive and the search delayed the entire project. 
This time, I told the crew to cut a piece of plywood the proper size to fit down in the hole; level with the floor.  We then sanded the patch right along with the pine floor.  We then drew lines on the plywood with a brown marker matching lines up to the grooves in the pine floor.  Then apply 3 coats of polyurethane over the whole floor.

The floor is solid, looks pretty good, didn't cost much and is pretty much indestructable.  I suppose if you  have a table saw; you could put little grooves in the plywood to match up with the pine floor.

I'm kind of proud of this idea and I am sure that I will fix my pine floors in this manner many more times!