Our oldest daughter was born perfectly healthy after a reasonably easy labor and delivery (painlessly dilated to a 6 then stalled...they wouldn't send me home dilated to a six, so they gave me pitocin and by the time I had any painful contractions, she was out 45 minutes later...)...at 36 weeks. It spoiled me! Now once I hit 36 weeks (at which point I've usually painlessly dilated to a 3-4)...I'm REALLY starting to feel it. That being said...I'm 31 weeks right now...and I'm pretty ready (yes, I know the baby is not...yes, I know the longer they're in there the better...yes, I know in the great scheme of things it is not the eternity that it feels like...but still!). I've gotten to where I can be reasonably patient till about 38 weeks...but anything beyond that, I'm particularly ornery.
ETA: I signed the rest of the kids (and myself with the littlest) up for swim lessons during my 35th and 36th week...and I'm hoping that helps with this one...I LOVE being in the water at the end of pregnancy...that makes it way more bearable...especially in this heat... :p.