Wizards and nosy muggle neighbors...

[usaixoise]

No: HPFGUIDX 161593

I did a search through the archives for any discussion on this but 
couldn't find it.  I was wondering if anyone had thought about what 
Wizards/ Witches said about their professions when asked by nosy 
nieghbors.  Although Arthur Weasley works in a department dealing with 
Muggle artifacts, he displays very little knowledge of them and one 
could imagine he would have a hard time lying his way through an answer.

Memory charms?  Are they and their houses as "invisible" to Muggles as 
the Leaky Cauldron is?

And (admittedly a silly question) how do wizards/witches do their 
grocery shopping?  I can't imagine they grow/raise all they need and 
going all the way to Diagon Alley for weekly trips would seem 
laborious.  I'm not sure there's an answer, just wondering if others 
have wondered about the more mundane aspects of the WW.

Stacey