We're expecting #2 and I'm hoping to have a better experience with sleep than with #1.
My 3-year-old was a terrible, horrible, no good, very bad sleeper until he was well over two. He was still up 3 or more times every night until then...up 4 or more times every night until he was over a year. We tried swaddles, swings, the mamaroo, a crib "nest", cosleeping, Happiest Baby, white noise, a majority of the things suggested on Precious Little Sleep...all to very little impact.
What's your top tip (or top 10 tips, I'll take all the advice!) to a better experience with #2