Where can you buy these things?
an armchair
a furniture shop
flowers, small gifts
a flower shop, florist's
It's a person who serves you in a shop.
a shop assistant
you pay less than the original price on the price tag
you get the discount
fuel
a gas / petrol station
shoes, accessories
a shoe shop
A thing you need in order to pay for the goods.
A credit / debit card.
the price was reduced by 50%
meat
butcher's
magazines, postcards...
newsagent's
You try new clothes in there.
Your coat needs to be cleaned at ....
dry cleaner's
pencils, pens, exercise books
a stationery shop
food, drinks, biscuits...
a grocery shop
a trolley
If you can choose from many different kinds of items
you can choose from a wide range of goods
nails, hammers, pliers, ...
a DIY shop
fish
fishmonger's
You pay there for your goods.
the counter
if you return goods to a shop and you ask for the money
you ask for the refund