Retractable Sharpie

When I saw these in a commercial during the Super Bowl I thought finally, an ad that actually influenced me to buy something. Mine arrived yesterday from Staples and they are everything I'd hoped they would be. The same great Sharpie ink and point, but no more cap to hold on to or put down and lose or forget about. What the great engineers at Sanford have done is create a minuscule hinged door that operates entirely within the instrument's barrel, opening and closing like a submarine's hatch.