I've always wanted to use the shelving you find in garages to put wooden crates on and would also like to be able to upgrade the truck storage so sea chests can replace wooden chests too. Attaching shovels/pick axes/hoes/sledge hammers to the sides of trucks to allow more storage space. Would like to be able to use the carts on farms to hook up to larger vehicles for additional storage options too or the ability to craft one. Someone else mentioned being able to craft a water catcher which would make tarp more useful too!