This is a very easy and practical way of using up old envelopes to create a notepad. Useful for writing shopping lists and phone messages. I would love to say this is my idea but I must be honest and admit to having seen similar elsewhere. I have one friend who creates wonderful works of art from old envelopes so that are really worth taking a second look at and also why waste them.
You will need a collection of old envelopes, split open to reveal the patterned inside, a hole punch, paper scissors, charity shop key rings with easy opening rings.

Instructions
Cut the envelope backs to roughly the same size. Punch a hole in one corner and then thread on the envelopes, with the patterned side facing upwards, onto a key ring.
