On the plumbing side of things, a leaky pipe or faucet is something that doesn't require a lot of experience to try and correct. "Try" because it may not be possible once you get into it. Not all leaks are created equally. Some might require a simple tightening where two pipes join with a monkey wrench. In this case, just get in there and batten down the hatches. Other leaks, you may find, are more complicated than that. If you tighten up everything and you're still leaking, then it's time to call in a professional. And here's one more tip - buy some Teflon tape and throw it into your toolbox. This thin white tape is used around pipe threads to prevent leaking.