We've been using tape measures wrong for decades
Actually don't, because that world is already here.
While we've all been awkwardly trying to snap the tape measure into an L shape when measuring in corners and odd angles for decades, it turns out that tape measure designers had a solution all along. As YouTuber See Jane Drill explained in her excellent YouTube video "4 Tape Measure Tricks," the body of every tape measure has a small label that tells you how long the base is.
This one says three inches:
So say you wanted to measure this:
You'd normally do this:
But instead of bending the tape measure, you should just hold it straight:
Then, add the length of the base to the length displayed on the tape.
Aha!
Watch the full See Jane Drill video here: