Excellent advice from IggyPiggy
Yes, folding your arms and turning your back on them should stop the jumping up - it will take time though and, as with any behaviour you're trying to extinguish, it can suddenly get worse before it gets better. Perseverance and consistency are the key. Speaking of which, dh has been complaining that our pup still jumps up on him, whereas she never does it with me. Then I caught him holding pup by her front paws, talking to her eye to eye (just about) while pup stood on two legs Mr Bella is on serious time out now!
Also important to teach an alternative, acceptable behaviour in place of the behaviour you're extinguishing - if you'd rather your dog greets you by sitting down, then teach him to do that.
MmeLindt - Daphne is, iirc, a maltese cross? So she's a little lap dog who will like to sleep a lot, and you don't really need to worry about her joints. It's the big, heavy breeds who take a long time to grow fully who are really at risk. Will swap you for 3 big energetic dogs on cold, wet, windy days if you like?
Are you getting another lab, iggypiggy?