How did I not know Babies r Us coupons

How did I not know Babies r Us coupons

Am I the only one that didn't know you can use buybuy baby coupons at Babies R Us?? Dh was being his usual haggling self and he asked the sales associate why he should buy from babies r us if he can to go buybuy baby and use their 20% coupon and the associate was like, "Of course we take their coupons." So I googled buybuy baby coupons and found one of those online ones and she scanned it for each item we bought and we saved $40. Wish I knew sooner ?