In article ,
"Amy L." wrote:

I know some of those are basic questions and that putting in a floating
floor is not rocket science, but with putting in my own (first) floor I just
want to do the best job I can.

Sounds like you're doing things right. Take your time. I tend to use a
jigsaw and a Johnson 12" SpeedSquare a lot. That combinations follows me
around the room. And as Mr. Confused mentioned, most end-cuts will be
covered.
"Steady as she goes and damn the torpedoes"