Junk Mail dilemma

I had accumulated so much Junk Mail before i got myself a no Junk Mail sign for my letter box. I was unsure what to do with it since it was so much. This is one example of what i did. Thought it would be handy to put keys in.
Other Ideas;

• use for cutting out for kids projects. 

• Instead of buying coloured paper you can cut out the solid bits of colour from the junk mail and use them in scrapbooking or making cards. 

• You can also fill toilet rolls with your Junk Mail and make fire lighters.

Any other ideas?

I now have myself a no junk mail sign, but i will be doing the same with newspapers and magazines and other paper that cannot be used again.