Just bought the new big ziplock bags Ive been seeing on TV. There are 3 sizes, large, XL and XXL. I bought a pack of large, 5 per box each being t15"x15" for about $5, They were able to hold both my small and large umbrellas. The larger one was kind of tight but it did fit, will probably get the XL next time. They seem pretty sturdy and have handles at the top so they are easy to carry. They also have a little white area you can write on with marker. I thought I would let you guys know so you can check them out, work perfect for me.