The sun hunkers down in your domestic fourth house until March 20, awakening your nesting instincts. "A house is not a home unless it contains food and fire for the mind as well as for the body," said Benjamin Franklin. Use this cycle to upgrade your digs so your home supports your current interests. Turn that spare bedroom into a home office; set up a kitchen island for your raw juicer or high-speed blender. Want to uproot? The time is ripe to get hooked up with a real estate agent, put your property on the market or check out open houses.