Do you like to be sure of things? One thing you may not be so sure about is the difference between “ensure” and “insure.”
Ensure means to guarantee, or make sure of something.
Insure references insurance, or paying a premium for future protection of assets, like a house or a car.
Here’s a way to remember it: It’s “easier” (with an “e”) to ensure something, but “I” don’t like paying for insurance.