I'm a huge proponent of thinking outside the box. At work I always to try to solve every problem two or three different ways just to keep myself working to find more solutions and to stay creative. I read today about a student who thought outside the box whose teacher didn't like it. The one I don't like is using the string, because technicially it violates the rule of using nothing but the barometer.
I would like to add a couple.
1. Use the barometer like a survey device. Lining it up like it's in a triangle.
2. Measure the sun and the height of the shadow from the barometer and measure the shadow of the house to get the height of the house.
I love thinking outside the box.