I've struggled mightily with "The Big Laydown" and getting to the river for the right price in cash games, being mostly a tourney player, but have made some big laydowns recently that may or may not have been good, including AA on a QJ8 A 10 hand where KQ or KJ were all over villain's range and he value bet $4 into a $12 pot on the river in 50NL.

I also laid down 99 on a KK9 board when the turn and river were 8 8, and frisky action led me to believe a K was his only likely holding. In reviewing that, he may have had JJ or QQ as well, and I suck, but the point is, at these levels, keeping the pot the right size and not losing a buyin with top pair is a critical skill that I am just now learning myself.