Speaking of the bedroom, it must be noted that this is the place where couples are most inclined to engage in the kind of activity that can burn 144 hours in half an hour. There doesn’t seem to be much research on the effect of bedroom design and décor on the libido, and although red is the color of passion, feng shui advisors recommend skin colors (ranging from white to chocolate, as shown here) for bedrooms. Also, declutter and minimize unsexy distractions.