I have pretty bed sheets i no longer use. Can i make slip cover for couch with them?
Sheets are not really strong enough for slip covers and you said they are pretty bad anyway. You would go to a lot of time and trouble to make new ones and they would not hold up. Thicker stronger material is use for sofas.
Agree with Em.
Drop cloths are durable. Can be purchased at home depot, lowes, walmart or target.
hometalk has some great ideas: