How do I make a Lite beer?

The short answer is, you really can't…and why would you want to? Anyway, if the Mrs. wants you to brew a lighter beer, one way to accomplish this is to use rice syrup solids instead of some of the malt extract. Start with a pound or two of extra light DME, then add two to four pounds of rice syrup solids. It still won't come out like the beer she orders at the bar, but it will be a lot lighter in body than your other homebrews.