A "lifehack" is a technique or idea that helps or prevents you.
For example, putting your car keys in your leftover bag of lunch at work will prevent you from going home without your leftovers.
Stuff like that.
Today, I took delivery of eight cubic yards of premium mulch. So, in order to give me some incentive to get it distributed around the yard, I had the driver put it on the driveway so that I can't drive my Spyder!
Now I have an incentive!
All The Best,