Congratulations
I agree with previous posters, it depends on the baby. For DD1, taking her for a drive in the car worked every single time. DD2 tends to get a bit wound up if we've had a busy day or if I've been really stressed. In those cases, the best thing I've found for her is to take her to bed (she co-sleeps most nights), turn the lights off, offer her the boob or her dummy (if she's too wound up she wants nothing to do with boobie and will just scream at it for ages) and lay quietly with her until she calms down. She usually nods off or will calm down enough to take a little feed and then falls asleep on the boob. Once she's out, I can get up and go back out to the lounge room and she will sleep through.

GL, bubs that age have their day/nighttime all mixed up and can get very easily stressed out - sometimes just sitting quietly in a darkened room and letting her have a big cry is good, I'm of the opinion that just like adults, babies need a 'vent' when they've had a big day. Just be there for her and let her know mummy is nearby and I'm sure the crying won't hurt her (although it is very stressful for you!!).