31% of households get most or all of their calls on their cell phones. Unfortunately coverage remains problem, particularly indoors. Some rather interesting folk remedies have been suggested, but the preferred solution appears to be your own personal cellular antenna. Trials have been going on for a while now. And with a crystal clear 3G signal in your house, you may just want to skip setting up your own wireless network entirely.
When it's been gray for days and it seems like spring will never come, making a terrarium (sometimes known as a Wardian case) is a good way to keep from going mad. Your own little ecosystem can be set up easily and cheaply in almost any clear-walled, enclosed container -- even a Mason jar or a two-liter Coke bottle. (Inspired by this.)