crossing your sevens

[Loony BoB]

I cross my 7s and my Zs. Like sharky, I also write my 4s closed <-----like you see there

The thing about crossing your zeros--they should only be crossed when zero is the only number. Example: You should not cross your zeros in the number 600. You should cross your zero for $0 (if you were counting a drawer or something.) The reason that line is there is that so someone can't add a number before it, and fraud money (turning 0 into 70 or something.) So you know that zero is the true answer.

Some serial numbers have 0's and O's. Some people write their 6's very similar to the 0's and it can get confusing. There are often good reasons for people to cross their 0's. I do it for serial numbers, personally.

See also: I, 1 and 7 in the same serial number. Urrrrgh. Hate that.