I have what can only be described as dreadful hair. It is thick and very naturally wavy.
Even my hairdresser admits it's difficult. For every day wear I blow dry it as straight as possible and then straighten it further with GHD's , It is shoulder length.
My biggest problem is what to do with it on holiday. I cant bear to stick a baseball cap on as I get too hot. If I go in the pool and then leave it to dry naturally it is just a frizzy mess ( think brillo pad). Sadly I do not have petite facial features so scraping it back is not a good look. 
The other issue is having to wash it every night on holiday and then spend nearly an hour blow drying etc is such a chore.
Does anyone else have similar hair? And if so what do you do ?