I called myself julie01--because Julie is my name, and I didn't especially want people to be confused about my sex (although I sometimes get confused about it), or appear to be hiding anything.
It was also a reaction to an earler user name, "14520sjowall"--eBay told me to pick a name that would secretly mean something to me, but would be hard for others to copy or guess...YAWN..well, '1452" is the year of Richard III's birth, the "0" is gratuituous (I think another digit was wanted) and "sjowall"--you have to add an accent mark, called an umlaut in German--is the name orf a great Swedish mystery writer, who wrote a series of 10 mysteries with her husband, Per Wahloo (more accent marks needed) before he died of cancer...I think the agreement to write the series was written into their marriage vows, but I'm not sure about that...