I sometimes just toss used envelopes into the recycling bin, but there’s much more you can do with them!
Take a look at the DIY bookmark idea via d. Sharp Journal. If you love to customize, this simple, yet practical project is for you.
And Design Sponge featured Inside Out Security Envelopes. Pretty stuff!
Also utterly fascinating is the FedEx Envelope Reusable Lunch Bag (pictured below) via Sternlab.

Other quick envelope reuse tips:
If you remove any glue and film, you can shred the rest of the envelope and use if for stuffing pet toys or beds. These shreds are also useful as packing …read more