The 01 + Pen is a compact pen, digital measuring wheel and laser line that gives you a small form factor tool that can measure anything you can get your hands near then write down the dimension. They say that this lets you go from measuring things to dimensioning them, which is semantics, but makes the point that you will suddenly be able to find distances you would have otherwise not been easily able to. For example, roll it down the stairs to get the length of runner you need accounting for the different planes of the stairs. You can wheel it around a circle table or over an uneven surface and get the exact distance. You can get one for a pledge to their Indiegogo campaign of $149.