Let me start by saying that I appreciate any baby gift we receive. Really, I do. But my brother and his fiance came to visit today and brought over 10 onesies for each of the twins. That's right, 20 total. They are 0-3 and 3-6 month size. They're the ones that come with 5 on each hanger, different colors/design on each. But not a single pair if pants. Oh, and they got the girls both the same ones so we have two of each. No offense to anyone who dresses they're twins the same but I don't plan on doing this. My brother's fiance has always picked great outfits for DD1. I was surprised really by this gift. No pants??
Re: So many onesies... but no pants?
This!! We went through a TON of 0-3 onesies. I also don't dress my girls in the same outfits, but just because you have matching ones doesn't mean they need to wear them at the same time. Or you can exchange a few, but you will definately need them!

Also, none of mine had pants which was perfect. I evened returned several pants that we had. Right now summer in the west is HOT. I have kept the girls in onesies almost every day for the past 2 months, and onesies only, no pants. Not sure when it starts getting cooler in your area though
I dressed my babies in sleep gowns for the first 2 weeks, then they were in onesies with long-sleeved feetie pj's over them for the next 2-3 months (as it got warmer we cut out the onesies underneath. This summer they wore exclusively onesies - honestly it was too hot for shorts. I had lots of pants, but they wore them so rarely, we rotated about 5 pairs of pants. For some reason, I never really dress them in the "real people clothes" that we have...
I'm odd then, too. DD wears dresses and I keep DS in one piece outfits like overalls or jon jons that have snaps on the legs. I'll use a white onesie as an undershirt but that's about it.
I have a theory that onesies, and the upward pressure from the snap crotch cause more poo blowouts than would happen without them. I can count on one hand the number of blowouts we've had and they've almost all involved a onesie.