Skip these mistakes when house-training
The mistakes you make in the first 24 hours your puppy is home make it more difficult to house-train him properly. Here are some tips:

Don't allow your puppy to roam. If you catch the puppy in "sniff and circle" behavior, you can prevent an accident by scooping him up with no emotion and taking him to the preferred location outdoors.
Don't whack the puppy or rub his nose in the mess when he potties in the house. This only teaches the puppy not to potty in front of you and to fear you.
Don't give the puppy too big of a room. Instead, when you cannot supervise him, put him in a small bathroom or laundry room with a comfy bed inside a crate.
If done correctly, it takes only days to house-train a puppy.