My handwriting has always been all over the place, was constantly getting told off about it at school (v old fashioned victorian style prep school) and it made me really self conscious about it which I feel may have worsened the problem as I just avoided writing anything at all costs!
I would now like to see if there's any way I can improve it as I've been promoted in to a job where I'll be expected to write on whiteboards etc. And DP's is even worse than mine so someone needs to be able to write legible Xmas cards! 
Has anyone successfully improved theirs as an adult and if so how?