M&S: one of the best places for sandwiches if you're in a hurry for a quick bite. Cheaper than you would think for M&S: if you can't make it to Greggs (very good tuna and cucumber) then M&S soft cheese and celery is great, or the duck and hoisin sauce wrap is divine if you feel like splashing a little more cash. The bottled water on the other hand is cheaper than most places except perhaps Morrisons.
M&S ladies' heeled shoes are also beautiful, a little more pricey than I'm used to shelling out but then you may not be such a tightwad as me The clothes are (even now) a little more 'old lady' than is to my taste, but your mileage may vary read more