How to make a travel cover for suit/clothes for dust protection

To protect your clothes not frequently worn from getting dust accumulated on the collar/shoulders, you need something called a travel cover, which is available on Amazon or in laundry shops.

But it can also be free.

1. Get a big clean plastic bag. i.e. a big plastic bag from Ralph's grocery supermarket
2. The Bag should be a Rectangle-shaped thingy with one side open and three sides connected, like an U. Cut open one side so it becomes L
3. make a hole at the uncut corner so that L becomes |_
4. rotate this. The hole is for your clothes-hanger's top; the two open sides are where your clothes come in.
         _                                                                     ?
     _//  \\_                                                             _//  \\_
  _//         \\_                                                      _//         \\_
//    bag       \\_   --cut open one side--->         //    cover    \\_  
\\_               /      --make a hole --->                   \                  /
    \\_        /                                                            \          /
        \\_ /                                                                   \  /