For real you don't want a new one!? I think you could do better!
Sounds like you aren't the only one with this problem!!!From 2 years ago:http://answers.yahoo.com/question/index?qid=20100917130139AAK8ZVYI would hazard a guess it's cheaper to buy a new one....I have an iron with the same problem...as far as the twisted cord goes. As for cleaning off the hair product gunk....you can try this:http://thefrugalgirls.com/2010/02/how-to-clean-your-curling-iron.html
wish I knew... I have the same problem with my blow dryer... but I think they are trying to shrivel up and die...perhaps the old girl is trying to tell you somethine? :-)
mine does this too! so frustrating! i'm sure you could find remedies to both your problems on pinterest...lately there seems to be an answer for all things household! Good luck...and let us know what you come up with!