Brain dump:
I did not have a boppy but I used my mini snoogle for both myself and my infant.
Socks for infants in winter, yes. Shoes, not really.
Wipes warmer? No. Diaper changing table organizer, yes, please. Multiple kinds of diaper cream to try? Yes. Onesies, onesies, onesies. If the kid is born in the winter/cooler months, sleepers are great, too.
My papasan style swing was a godsend. Some babies do not like swings, but that thing was worth its weight in gold.
Video monitor? Haven't been impressed with the ones I saw. The audio was just fine for us.
Breathable bumpers and halo sleep sacks.
Travel system - I liked the stroller, but it's big. I'd go with a snap n go and a good umbrella stroller if I had a re-do.
Clear rain cover for carseat carrier and a shower cap style no-jo cover - great investments. Don't get a snuggly cover that has to go around the straps as it may interfere. The shower cap style is easy to use.
Raincoat for mom. You can't easily juggle all the things with an umbrella.
No thick snowsuit for baby. Nice fleecy jammies instead with a cover for the seat. Thick jackets and suits make it impossible to pull the straps tight enough and make it unsafe for baby (so $$ saved). Get a nice poncho or some cute hats and a blanket to carry baby to the car if baby isn't already in the seat.
Some sort of Bjorn or ergo or strap on carrier for walking sans stroller.
Backpack style diaper bag. Hands free.
If she needs to pump and work, a metro bag or a nice little bag with just the motor vs the Medela backpack is my vote. Tell her to get a really good pump and not the on sale pump. Medela, Ameda and Lanisoh all sell good ones. Inexpensive bottles (gerber, evenflo) usually fit.
Hope that helps!