Chiming in. Definitely the 'nothing in life is free' is a great way to go.

Small dogs are often tolerated for little misbehaviors, and like a little warbonnet, they stick a feather in the cap every time they get things their way. So things can escalate. The kindest gentle way to teach a dog self control is to use the NILIF principles. Everyone in the family must learn them because it is kindest to be consistent and fair.

If pup comes up to be petted, don't automatically pet. Ask pup to sit. I usually hold a treat in my fingers and over the pup's head, and move my hand toward the back of his top skull... this will make puppy follow my hand with his eyes and he will nearly always sit neatly. If he jumps, say nothing, just hold the treat tight til he goes still and sits, then reward him, praise too.

To get a good grasp of what NILIF is about, read several of these links .