A Wizarding Superstore? Help!

[Ebony AKA AngieJ]

Hey, OT-Chatters...

I haven't bothered picking your brains like this since the help you 
guys gave with "Christmas Dinner in England" and "Truths in the 
Wizarding World".  (Well, with "break-up songs", but I won't need 
that just yet.  I was just asking for future reference.  ;-))

Six months later, I need your help again!

If there was a wizarding version of the American superstore (Super 
Wal-mart, Super K-Mart, Meijer's, etc.), what would it sell?  I'm 
trying to make a list of departments here...

And before you say "this would never happen--this world is too 
traditional--they wouldn't like it" rest assured that this conflict 
of interest is being exploited as a source of tension.

So what would be sold there?  I'm thinking the establishment (can't 
give you the name yet, it'd be a spoiler if you're reading TiP) 
wouldn't be as glossy and plate-glassy and brand spanking new as the 
Targets that are gobbling up greenspace in metro areas... it'd be 
more like the great catalog stores of the past like Eaton's and Sears 
Roebuck... more of the feel of a general store to the nth power when 
one steps inside.

Jana and I were making a list of items that one could purchase there 
the other night... "broomstick clippers", "robe 
fasteners", "squirtberries by the pint", "Boswell's Best Bundimun 
Scouring Agent" ("my own invention", as the White Knight says), and a 
few others.

Can you think of anything else?  It could be something you've always 
wanted to pick up at what my grandmother still calls the "ten-cent 
store", but couldn't possibly get on the Muggle side of things.  
Since I'm not so sure that *all* magic food can be spontaneously 
generated (although I *do* hear the argument that the Weasleys may 
have starved to death otherwise), I'll throw in a grocery department 
to boot.  The only thing is, these people seem to eat the same things 
that Muggles do--how does magic make grocery shopping easier?  

Any help you can provide with this will be appreciated... and duly 
acknowledged.

--Ebony AKA AngieJ