I cannot discard a beautiful postage stamp, and most of my friends know that and keep theirs for me. The first card uses Christmas stamps from the U.K. I floated the stamps off in a saucer of water, let them dry and mounted them on dark blue card stock, then silver and finally onto the main card. Added a peel off greeting and a beautiful, simple card ready for posting.
The second card is a selection of South African stamps featuring fish in our waters. Beautiful colours. This kind of card is ideal to use for a male's birthday/greeting card. We all know how difficult it is to make those cards!
Using stamps, you can generally find a selection that will suit the occasion and or the recipient.
Don't throw them away - recycle.......