You will have access to the space 1-2 times per week.
You will have access to the space on a daily basis.
I have 2 sheds behind my house. One is quite large and could accommodate boxes and small appliances (up to a lawnmower or even washer). These are smoke free. No water gets inside. They are behind the house and require coming into a fenced in yard so no one will have access to your belongings.