- The first available not-yet-used single letter variable. (starting with $c as $a and $b are magic)
- The first letter of today, whatever it happens to be
- The first letter of the data type. If it is already in use, use a capital letter
- I have a random letter picker program for that (shurtcut key available in my IDE)
- I pick a Unicode character, just to make it hard for others
Enjoy, Have FUN! H.Merijn