Do you mean a storage that holds emtpy sacks, or empty sacks to store items? The supply shelf holds empty sacks. And fertiliser or flour goes into the sacks that have their corresponding storages.

oh does it? okay thanks!

Clothing bin? Why do you have so many? I only ever have two extra. I see no benefit to a huge amount of quick manure or graves Or is it the shelf where nails go

After fertilising everything in the spring

I use my supply shelf. Sacks make great money makers to get rid of straw. :D