If you are a retail business with great display windows, take advantage! Decorate for seasons, holidays, organizations, or special causes like shopping locally! (Reform School shop window by Jessica Pezalla of Bramble Workshop)
I gave an Autumnal, slightly gothic subtle twist to my window display at The Mill in time for Halloween. I have been finding original Wardian cases and animal skulls to add to the display as well as the tall vases with carnivorous plants.