I rarely ever wear underwear. I wish I could go without a bra more often than I do but my breasts are so large they hurt my back if I don't provide them with some support. I prefer to go without panties to make it easier to get to the goods. When I'm wearing short skirts it also provides great upskirt views that I enjoy providing by riding escalators, glass elevators, walking up stairs or simply being outside on a windy day. I'm glad your wife provides the same for you. Just let her know that you would enjoy her doing it more often without being asked. Im sure she will be happy to accommodate.