when my son was born they checked him for hip displacement as ALL of his joints clicked.
It has never seemed to cause him any problems and he is very sporty. I too have clicky joints especially my feet and shoulders. I have heard that taking cod liver oil capsules can help reduce the risk of arthiritus in later years but have never bothered to take them.....I did have a go at taking them and one burst in my mouth yukkkkkkkkkk
so have never taaken them since.