I just finished up laying the VCT this past weekend, and afterwards I damp-mopped it twice, and applied three coats of the Armstrong Excelon floor polish (Lowe's, 18.99/gallon).
It looks like you get about 400 sq/ft per gallon (at three coats of coverage). I waited a couple of hours between each coat. I used the applicator pad (it's like a paint pad) shown resting on the bucket in the last photo. Lowes' had them right next to the polish, so that's what I grabbed...I rinsed the pad out with clean water each time I was done with a coat.
I would say that using an applicator pad is a "must" since just about anything else you could try to use would probably shed and leave fuzzies in the dried floor polish.
I did not use a polishing machine, I'm sure this stuff would buff up to a crazy shine though, and I'm really tempted to do it...a family member does have a pro floor buffer machine...Hmmmm....
I did about one third of the garage and then just need to install the window trim and baseboard. We'll see how well it holds up.