Laminate Flooring....

Laid a lot of this over the years for a general contractor. Lots of good advice above.
Follow the mnfctr instructions
No sealers.
Fix underlayment squeaks/high spots b4 laying new floor.
Leave recommended space around edges
Every seam must be RIGHT b4 starting next row
Use good laminate blade from back side of panel
Use proper tool or scrap piece with one good end to bump the lock joints
Foam underlayment if recommended will provide better feel and lower noise level
Be sure to undercut door frames to prevent distortion and allow expansion
PATIENCE! PATIENCE! PATIENCE!