B. House training
Some diligent attention to your puppy can really pay off in the long run in terms of house training. You can also use the clicker to housebreak. Simply take him outside...as soon as he starts going click...when he is finished going potty...reward. He may eventually squat like he is going and not necessarily go, to get reward...this is ok. Still reward. He needs to get the idea that it is a very good thing to go outside. Make sure your puppy has solid history of being rewarded for going outside. Take him out very often initially. Puppies almost always need to eliminate after eating and after waking up from a nap. If you must do chores, confine him to the room you are in so you can keep a close eye on him. Try to take him out every 30-60 minutes while he is awake. If you cannot watch him...place him in his crate temporarily. Unless he was initially raised in a cage such as puppies from a pet store, puppy mill, or a disreputable breeder, he will not want to eliminate in his sleeping area. Eventually you can start increasing the time to take him out.
If you do notice the puppy eliminating inside, make a loud noise (yell no, clap, use shake can, or use a rolled paper on the counter) to distract him. Then immediately take him outside to finish eliminating and again click and reward. Once he starts to get the idea you can gradually decrease the number of click and rewards...while varying the instances that get rewarded. (you can say good boy instead of click and reward). Eventually you can fade out click and reward all together and stop going outside with him every time, once he has mastered the concept. Keep in mind though most dogs do not become fully house trained until 4-6 months of age or later.
If you find a puddle and did not see him make it, shame on you for not paying attention. It is NOT advisable to use physical punishment, or to rub his nose in "it". Just clean it up. Don't punish him belatedly. He has likely forgotten about it and would have no idea why he was being punished! This method I have outlined above takes a lot of work on your part while the puppy is awake, but in the long run we think it is quicker and more painless than most other methods!