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This easy gift wrapping hack is life changing — and saves paper!

A simple gift wrapping hack from Waterstones has gone viral on Twitter.
If you cut the wrapping paper too small, don't throw it away just yet! This trick is here to help.
If you cut the wrapping paper too small, don't throw it away just yet! This trick is here to help.Getty Images
/ Source: TODAY

Seriously, how did we not know about this before?

An amazingly simple gift wrapping trick is going viral on Twitter and, to be honest, it’s life changing.

Basically, the hack solves the age-old problem of running out of wrapping paper. Not quite enough paper to reach around the gift you’re trying to wrap? No problem: just turn the present diagonally!

Diagonal wrapping maximizes the area of available paper, and could be a lifesaver for wrapping larger presents (and for saving paper in general).

The lifestyle website Blossom originally shared the hack, and the video began picking up steam when Waterstones, a British bookseller, reposted it on Twitter as a “public service announcement.”

People couldn’t get over the simple yet brilliant trick.

“This is actually a life-changing moment,” one gift wrapper tweeted.

“Where have you been for the last 50 Christmases!!” someone else commented on the video.

"Why am I just learning this?" another person tweeted.

Even TODAY’s own Willie Geist admitted his mind was blown by the ingenious hack — although the trick was old news to his wife, Christina. He summed up their funny conversation about it on Twitter.

“Drop what you’re doing and come at once! Witness this disruptive breakthrough that will alter centuries of wisdom about gift wrapping! Hurry!” Willie told Christina.

“Christina, with the calm of a cold-blooded assassin: 'Yeah, I know. That’s how you do that.'”

Apparently, Christina Geist isn’t the only person who’s been clued into this gift wrapping hack for ages.

A few people on Twitter expressed their amazement that many others are just learning about this now.

“I’ve done that my whole life, can’t imagine that others did not know about this,” one person commented on the video.

In general, though, this hack came as a revelation to even the most seasoned gift wrappers.

“I was a bookseller for 3 years, wrapped about a million books, and I did not know this,” one person commented. “I feel embarrassed and ashamed.”

“Same. I’m mortified,” another person replied.

Well, now we know. And with Christmas less than two weeks away, this hack hasn't come a moment too soon. Happy wrapping!