Some people write diagonally. A notebook for them could be fun.
Have cities give abandoned and unused property to artists as workspace under the condition they create something visually striking with it.
A special check-in on Foursquare for each time we see a homeless person on the street. This way it is easier to take action.
Install a hole punch in the rings of a binder. You insert a sheet and punch holes in it simultaneously.
No Brasil algumas vezes PARE=acelera.Um pequeno truque de perspectiva pode aumentar a atençao a sinalizaçao de parada obrigatoria .
Music in the public transport, PT Can be supported by broadcasting stations. Maybe we can take a jazz bus or choose a soul tram?
Create an Artificially intelligent teaching application that tutors students remotely using open source technologies...