Some time ago, I purchased several yards of 100% cotton duck fabric from Joann's to make aprons. I thought this would be a good fabric for gardening/barbecuing aprons. I pre-washed it and have been unable to get the wrinkles out. I have tried steam pressing and also washed it again adding vinegar to the rinse cycle. I don't want to start any projects with it until I know I can get the wrinkles out. Any suggestions will be appreciated.