How Do Y'all Spell Y'all?

When I lived in Cincinnati I used to get a kick out of this every time I drove by it.

[QUOTE=pulykamell]
Have any other contractions lost their apostrophes? I seem to remember this being the case for some words, but I can’t think of any examples off hand.
[/QUOTE]

Hallowe’en is most often now spelled Halloween. In fact my spell checker only likes the latter.