Because I build from plans and like to save money I usually have them folded and stuck in an envelope for shipping. As soon as I get them I pull out the iron and ironing board plus a brown paper bag I get free at the market. I open up the bag and place it over the plans and iron them through the bag. Never a problem. I use a little moisture too. Once I have them smoother out I back roll them with the printing side out so they will lay flat over my building board. Depending on the plans I sometimes go to Kinko's and have an extra set printed out. Other times I cut out the parts shown in profile and make a copy on my puter. I save the originals in a big envelope but do build over the plans. I use wax or parchment paper over them so glue doesn't stick to them. The plans do get pin holes in them but they can still be used again if I want.