Back-of-the-Envelope Note-Pad

Oh, the pain of not having an envelope to scribble on the back off when the need strikes. Fear no more! Here's a note-pad that's always available when you need to do a back-of-the-envelope calculation. It's also a great and handy way to re-use envelopes before sending them to the recycler. Gather ...
By: kahht

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from Instructables: exploring - featured http://ift.tt/2IhujgZ
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