Everybody knows theres white (thin, thick, medium sliced all in full or half loaf) same for brown and multigrain... so that's at least 18 to start with
On a serious note, since waitrose started price matching other supermarkets on branded products and also introduced their own 'essentials' range they've become seriously competitive on the cost of my weekly shop compared to Tesco etc.
their reduced section is amongst the best out there
i've never considered Waitrose right up there. i've always seen it as a separate entity. don't see it as a supermarket. just a nice food hall.
Im often in Guernsey visiting family, and the Waitrose in St Peter Port is a MASSIVE store, clearly it's too big as their reduced section is so well stocked you can almost do your entire shop in it!