>What is WAG? I see it a lot but don't know what it is.

WAG - Wild-A**ed Guess
SWAG - Scientific/Stupid WAG

>OK, so I name a var the same as the cursor ... then what? What does it achieve?

Because of a bug, VFP could create a new entry in the internal Name Table every time you run select with the same cursor name and eventually fill up it. It usually manifest itself as a cursor with empty name but may, I guess, cause C5. Creating a variable with the same name as a cursor prevents creation of extraneous entries.