Even a contractor's overall estimate - which usually comes with its own contingency factor - should have a second margin put on top of it. Renovations almost never come in on-budget, so you should try to be prepared. Do bugs keep you from enjoying the outdoors. Consider adding a screened room or space to your home. It offers an area where you can sit and relax with family friends, while not having to worry about these pests bothering you.Secondly, if your budget allows, install an energy efficient air conditioning system. When choosing a contractor, make sure to interview them and check references. There are few things more painful than a home improvement project gone wrong. At best you'll have to live in a house that makes you unhappy and at worse you could find yourself without a place that's safe to live in. Perform your due diligence upfront in making your choice so that you won't be surprised at the results at the end.You can customize your door with new knobs or locks, which are fairly inexpensive. There are many options as far as finishes and shapes. Light is a premium often overlooked in home improvement projects. There are far, far more rooms in the world that are too dim than there are rooms that are too bright. Adding more light fixtures is almost always a wise home improvement job, and often a fairly simple one.In more extensive renovation work, installing more windows accomplishes similar results. If you are renovating your bathroom, consider installing a steam shower. Steam showers have many health benefits, as well as being more comfortable to use than a standard shower. Steam showers are great after exercise, to soothe tired muscles, or for people with asthma and other breathing difficulties. There are even steam shower products that can be added to your current shower unit.