As of last year, according to estimates, more than 43 million households owned dogs. On top of that, the average American pet owning household has 1.6 dogs, and there are 2.1 cats in those homes. Because even the tamest and most well-behaved pets can be a hassle, especially if you have two or three in your house, finding some helpful free pet advice online can be quite helpful. Whether you need some basic dog training tips to help your puppy …