Fairy, we never went to DLR when E was wee, but we went to festivals. Sling ALL the way. We never owned a stroller that could deal with an infant carseat, and in fact used our arms and slings solely b/c frankly carrying an infant carseat is possibly the bulkiest thing one can carry. We are strong people, we each did it once each, and decided that the extra money towards chiropractors to fix us if we did that routinely would better go towards other things.
So with an itsy bitsy I'd get a nice mammasmilk.com sling (if they are still in existance) or maybe a hotsling if you can get the measurement correct (mine never was, and it was custom-made with a brocade side (I was a b'maid when DS was 9 weeks old and I wanted something to be fancy since the bride was making a "no kids" exception for me) so it slid around on itself and me).
FWIW, for your hubby, the bjorns...meh. Totally unergonomic for adult and baby, and while I'm sure that you guys are wearing baby facing your bodies, which is a bit better for baby than facing out, but it's still better to get a nice supportive (for baby's pelvis) carrier, like a mei tai or ergo with the infant insert, and just drop the bjorn.
My hubby got a maya ring sling, if you can believe it, in this great purple Guatemalan looking fabric, and LOVED it so so much.
And you're mainly right about people not touching baby in the sling. At the wedding I was in, I was wearing E, and this dude went to touch E's head...then suddenly realized that his hand was about to touch the area where milk comes from, and he pulled back in shock. He was the only one that got that close. No one wants to touch in that area, LOL. Definitely a nice protective device.
