It's the last day of an unusually long weekend, and there's absolutely nothing on the schedule. Break out the tools and pull up one of these nifty DIY projects to improve your living space and boost your can-do cred. 10. Light up your yard with mason jars Buy a mess of ground-staked, solar or battery-powered yard lights from your local big box store, and people might be impressed at your ability to space the sticks you plunge into the ground. Convert some run-of-the-mill mason jars into hanging