[PAR35]

A slash through the number seven would help as well.

Like the Nazis did?

[T.B. Yoits]

The slash through the seven pre-dated the Nazis. The French in particular used it because of their number one with a very pronounced upstroke.

[AFreeBird]

Oh geez.

I put a slash through my 7s as well as my zeros. It helps with my atrocious handwriting.

[lastchance]

I put a slash through my sevens. Shall I begin measuring the Sudetenland for a new border?