The John Lewis Partnership operates some policies which might seem mighty strange to most onlookers...
It's almost run in the same manner as a government agency. Not quite all that efficiently, but it gets things done. And the staff don't always seem to care.
The staff are known as 'partners' - because, as noded above, they own a share in the company. They have their own Partners' Entrance, Partners' Canteen (very cheap and very tasty food is served here - they do treat their staff well), I even spotted a toilet for "Cleaning Partners Only".
Their "Never Knowingly Undersold" policy allegedly involves negotiating deals with suppliers so that they can get better margins than anyone else. Buying is handled by comittees for each store - it ain't centralised. This is where the civil service aspect comes into play.
While they're open on Sundays (here in Glasgow, at least), they're closed on Mondays. An exception is made in the run-up to the Christmas period, when they're open until about 4.
Until very recently, the chain didn't accept credit cards, but I believe this is changing.
Oh, and if you want to buy some electrical goods, do it here. Not only will you get the best price anyone else happens to be offering, but they'll throw in a pretty good extended warranty, for free.
http://www.john-lewis-partnership.co.uk/