For filenames I like single lower case characters. Tho I'll double them occasionally 'xx', 'zzz', etc.

For input strings I like 'qwer', 'asdf', 'zxcv' and the like.

A diabetic unix sysadmin friend liked 'donut', a former supervisor like 'zinj', a former (VMS guy) coworker liked 'blap'.

--
-ken rich       "I'm continually AMAZED at
                 th'breathtaking effects of
                 WIND EROSION!!"  (Zippy)
[download]