I have a woman (not a girlfriend/wife thank God) packing suitcases now for a flight. She's already asked me what dimensions the airline allows for carry-ons (ever heard of Google?). I tell her: 55cm by 40cm by 25cm.

Now, she's brought 3 suitcases to my room and with the tape measure in her hand, asks me if they would fit.

Guess who is going to get asked to weigh them soon...