

I made a shirt like that before for someone. It was a it had the Hyundai logo, the label S2000(A Honda sports car) and a picture of BMW Z24. It was very wrong but in a way subtle enough that only people who liked soft top roadsters would ever notice.
I’ll add my experience to it as well.
I recently used it for a trip. I put into it my flights, hotels, checking/out times, reservations, and any other pertinant travel data. It gave me one single place to find a rather large amount of data.
It also helped me keep my timelines straight as I was booking things to make sure I didn’t have any overlap.