one of the most helpful things I do with a new puppy is leash them in the house. I use an old six foot length of clotheline and attach it to thieir collars. No more running around the dining room table with no hopes of catching the little bugger. Also good for when new people come into the house, no jumping, etc. I don't hitch him to anything, he just drags the leash around with him.
RIP: Shane, Arrow, Inga, Harley, Norton, Vincent