If you are purchasing a home, hire an inspector. This way, you don't have to rely on your own eyes and the seller to tell you what may need to be fixed or replaced should you buy the home. A professional provides an objective opinion, and that can keep discussion of any issues he or she finds civil.
Make sure you have weather stripping around all of your doors and windows. This helps you with multiple problems. It keeps air from leaking out keeping your house cooler or warmer when you're running your A/C or heat. It can also keep little critters from finding their way in. It's also good if you're in an area that floods a lot, to keep water from seeping in.
When trying to keep your home cool in the summer time, employ the use of lots of fans. Ceiling fans can be particularly great at cooling down a room because they improve a room's circulation. The use of these fans can impact the use of your central heating and air system, which lowers your energy costs.
It is wise to trim any branches that are overhanging your roof. In a storm they may break off, fall and spear your roof. In a snowstorm they will dump their load of snow, which may accumulate as ice. Also, falling leaves from these branches may accumulate and cause dampness on the roof, and clog the gutters.
Keep this information handy for future renovations. Whether you are doing a home improvement project this weekend or saving up for a major undertaking in the future, this information will be helpful to you now and later. All it takes is a little good advice to make your home improvement dollars go the furthest.