Every time I come home my dog gets happy and excited, and greets me as if we've not seen each other for a year. I stop her jumping on me when I'm face to face to her but as soon as I turn away, she'll jump and paw on my back! She knows the moment when I can't stop her and she uses it. I don't know how to deal with it, please help?

Have you tried to command her to sit before you turn away? Or to go to her crate if she's crate trained?

I walk rapidly away from my jumper, give her no attention unless she has 4 paws on the floor. She is only 9 months and gets very excited, but does this much less since I give her no attention for negative behavior.