I have suffered from limited space almost everywhere I have ever worked, even down to an 80-ish square foot space. For glass storage, I am presently using some of the boxes the glass comes in, in much the same way that you are, but I do not stack them more than 3 high as a means to prevent crushing. Additionally, I have added some storage using thin wall PVC drain pipe and flat caps (these are the lightweight types not inteneded for pressure applications, so they don't weigh much. These, I find, are great for keeping glass clean. All of this is located under my bending table.
If you have space, you can store more in a similar way underneath your processing table or in other places. I do not recommend storing it vertically unless you have no other options. And if you do store it vertically, the PVC may work better since you can cap them to keep dust out and you must have them restrained so they don't fall over and also have enough head room to pull a stick out completely.
On a related note-- for your patterns, because they are very light weight, you can roll them up, slip a toilet paper tube over them to hold them, and then place them into an overhead holder suspended from the ceiling (away from your burners!) and this will also help free up space.
If you wish, you may reach out to me directly (go to my profile and the personal website link) and perhaps if I can see some photos of your place I may have other ideas for you.
thanks,
Robert