Howdy, summer is here and the fish are biting.  Is there a good way to perserve my work of art for a few months with a cover  while I am busy with other things?  11ft. by 3ft N scale .  I never had this problem before as I never stayed with it this long.  Last year it was being revised and didn't matter.  Any suggestions would be appreceicated about a cover for the layout. Thanks Poppy1129