Corner bookmark
We know it: from bus or train papers to used movie tickets... all is useful to mark the pages of the book we are reading right at the point where you have fallen asleep or stop.
But D-Sharp journal propose a distinctive and unusual solution: recycle the envelopes you don't use and cut their corners to give them a new one as a point of reading. You can write messages or draw whatever you want on them. Brilliant idea!
- via: D-Sharp journal