Here's what happened...
Years ago, I had to move a trailer by hand (like I did so many times before). But this one time... it was way harder to move it around than ever before.
So much so, that even though I had to move it just a few feet aside... I had to catch my breath afterwards!
It was so bad, that I looked at the trailer to see what was wrong with it...
Then I found it... The tires were low on air pressure. They were not flat, just lower than usual.
This is when it hit me...
When your tire pressure is lower than it should... It can cost you a lot!
Then something cool happened...