Hey there guys!
Just joined today and was hoping this guide would help people who's in need of extra storage space!
1. Go to the Auction House.
2. Post the items you want to store for Sell.
3. Cancel the items.
4. Items will then be under Completed Tab.
5. Send To Stash when ever you are ready to use it.
Store up to 50 items you want under there until you need it.
Enjoy!