If you feel a draft coming in under any door, or around any window, it is likely that water can also come in during heavy rains. Likewise, your heating bill may be higher as the warm air can seep out through these same areas. Home improvement centers can advise you on weather stripping. Wood patios and fences tend to experience deterioration from moisture. Check for rotting posts that may need to be replaced.
Spring cleaning is a great time to repair any nuisance items in the house as well.
Items such as a leaky faucet or toilet, cupboards that do not close, cracks in the plaster, or creaky door hinges. If you did not change the air filter in your heater when winter began, now is a good time to do so. It is also a good time to check the batteries in the smoke detectors throughout your home. While you're at it, make sure your flashlights are in working order in case of emergency. A complete property inspection may identify problems that the average person could not detect.