That's a fantastic deal
! I tried the coupler thing with my two and they just ended up tangled together
Now I take the coupler end and clip it to the center ring, around the seatbelt that holds the car seat. One is hooked to the seatbelt and the other to the carseat belt. Does that make any sense?
Anyway, just something to think about if your two get tangled up too much like mine did.
Congrats on your new addition!!!