MF>        Also "per," as in "$2.50 @ bushel."
This is properly written $2.50 per bushel or a bushel
 MF>        Also "each," as in 35  @."
This is properly written 35 ea
 MF>        Seems to me "in care of" may also be a 
 MF> commom use for @.  Not sure,
 MF>        but I think I've seen it a few times.  This use is not in
 MF>        Merriam Webster.
In care of is c/- or c/o
 
If you use @ to mean anything but at you'll end up with all sorts of 
misunderstandings leading to arguments with your customers and even lost 
sales.
--- Maximus 2.01wb
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