Book excerpt: Popular Mechanics knows: there are two types of people in the world--those able to fix whatever goes bust, and those who beg the first group for help when something goes wrong. But it doesn’t have to be that way, because this easy-to-follow guide will give anyone the basics to tackle those frustrating (and sometimes nerve-wracking) quandaries that crop up around the house: plumbing problems, electrical snafus, appliance failures, computer and electronics breakdowns, pest infestations, and furniture in need of renewal. They range from the serious to the merely annoying, but every one is cause for concern. So, whether the issue is a fast repair for a running toilet or a leaking pipe, or a simple, inexpensive way to keep deer from pillaging the garden, it’s all in here.