I installed around 1,800 sq ft of the stuff 2 years ago throughout my old house. Things that I learned:
-When installing the underlayment/vapor barrier, make sure your seams are tight and you don't have any overlaps of underlayment, and that your underlayment is flat to the substrate. You may assume that the laminate will weight down any 'bubbles' in the underlayment, but it doesn't.
-Buy high quality saw blades made for laminate flooring. I used my miter saw more than anything, and had a Diablo blade in it (expensive, but lasted the duration of my project, and cut smooth as glass). Same for my table saw. I used a jig saw a TON, too. Bosch has jigsaw blades labeled for use on laminate and they worked great.
-I only wound up having to cut the tongue/groove out in one spot in my entire house to make some pieces fit. If you have to do this, don't use regular wood glue on the laminate. There is a special glue available in the flooring section of the big box stores that won't swell the laminate.
-Make sure to maintain a 1/4" gap between your flooring and the wall. I used the cheap plastic wedges that came in the kit for this.
-Definitely get the door jamb undercut saw. Use a scrap piece of laminate for a jig when cutting the jambs.
-Not really a tip, but you're about to realize just how crooked your walls are, and how out-of-square your room really is. The first row is the toughest to install, in my opinion. You'll lay out a straight row of laminate against the wall and notice your 1/4" gap where you start turns into a 1/2" in the middle of the wall. I used the table saw to freehand cut a lot on the first and last rows to get everything to fit with a proper expansion gap.
