We do have a tiny permanent greenhouse attached to the side of the house. Years ago, DH built it for me from windows and a small French door from Habitat's Reclaim Store (all for $90.). It was before I joined Master Gardeners and learned that the north side of the house was not an ideal location for a greenhouse! It's now home to garden tools, Shop Vac., and asst. garden supplies. It's messy...
Here's a photo of the wall of watering cans:
