I know four women with shopping addictions, none are Daddy's Little Girl's. I think that's an irony in your case. You two like hanging together!
The women vary. One's is an heiress who shop online only, hardly ever open a box. I try to get hey some real hobbies, and the dog and computer and gardening work best. Another buy a car-full then return 3/4. But she has great taste and if I need something for a special event she gets it right the first time. Third buys only at WalMart, no taste, but great buys. Fourth stocks up for the next disaster (e.g., hurricane).
I think it's an obsession or addiction--not wise purchasing. Just my opinion.