HI, I want to return a pair of shoes that I recieved that don't fit & I normally would go to the USPS or UPS but I have a bunch of forever & 44cent stamps lying around & I don't really need them...Does anyone know how much I have to stick on my box? It weighs approximently 3 pounds & needs to be shipped to Ontario, California. & I like in the bayarea. Or if anyone knows who I should ask for this info it would be great~! Thanks!