When I cook, I generally just estimate my butter measurements. One tablespoon equals half a stick, two tablespoons becomes a whole stick. What can I say, I like to keep things simple.
The KitchenArt Buttermate adds overrated precision measurements to the butter+me-life=happy equation. Using an admittedly interesting slider system, you can select teaspoons, tablespoons or even pats, slicing the required allotment with an integrated stainless steel blade.