Have your husband reply, "all of my children are equally cherished and deserve equal treatment. How dare you suggest otherwise. He sees you 9/10 of the time and you choose not to send clothing when he comes to see me, so I will provide 1/10 of a wardrobe for him for use when he's at my house. Be happy that I allow him to take it home with him, something you are not good enough to permit. If you get to a point, ever, where you can consider being cooperative as a co-parent, maybe we could combine clothing budgets, but until then, I provide what is appropriate for my home and you provide what is appropriate for yours, and you shouldnt' dare to suggest to him or anyone that what I provide is not adequate, or that my other children deserve less from me than he does."