greeting card for the century

Cheap day.

Do you like this one?

Send off a blank greeting card joined on a string to a pencil, with eraser on its end. Recipient makes out what they want to read, from you, and everybody feels good. And wealthier.

Or this one? Probably a little less subtle. More personal?

Recipient's name printed/penned inside, signed by you, with empty boxes or lines to fill in events.

A few bland diagrams of for example- a tree, a bunny, candle on a cupcake.

Together or on post-it-notes to swap around, suitable for the event required. On the inside or the front.

With the attachment as above.

The other thing is to cut costs further by sending instructions by email, rather than using snail mail, to the intended recipient of the greeting card to make it as instructed above.

Either way its a win-win situation.

No massive profits to the bloody greeting card dupers or to the post, there is money in your pocket for the ISP bill and less useless processed native timber floating around, or on the road or in the sky.
Let's keep the processed timber for the bathroom?

So the point of the card is you have named the recipient, and it's signed with Yours Faithfully, Sincerely, best regards, thanks in advance, truly yours, BFF, etcetera etcetera. With a few little pictures on the front or inside, you have the year covered.
All your recipient has to do at the right time of the year is just rub out the last event/year and fill in the blank.

An ultimate recycling project.

They will always thank or think of you for being a planet saving thoughtful/less tight-ass whenever they dig it up.