I am not going to play one shop against another,within half a mile there must be at least 6 supermarkets around and in Cala'bosc,they sell just about anything including bakery goods(really good value),Beach umbrellas, lilos, clothes etc.
You can get things like tea bags HP sauce etc.
We visited them all,they were all very friendly and helpful,my Spanish is very very limited and just about everyone spoke English,if not we made ourselves understood with sign language.
I could not fault any of them at all, it made our stay that much better.Gracia's
What to buy: Water,The water is fine from the tap,however it tastes salty as there are a lot of minerals in the water,everywhere supermarket wise sells water up to 8ltr size.
If you buy airbeds make sure you check with the shop before leaving,most have an air compressor outside to pump them up.
Telephone cards can be obtained from reception at most Hotels and will last anything up to 45mins.Jazzcard (Tarejeta Prepago)
What to pay: Water varies depending on size but I would say normal prices,Sun Umbrellas and airbeds are inexpensive.
Phone cards are €5 euros so very good value phoning back to the U.K.
And diesel is less expensive than the U.K ,well it was when we were there.
What to buy:
You may see these even before arriving to the island. We noticed that many of our fellow travelers on the plane from Barcelona to Menorca were wearing “abarcas”, the typical Menorca's shoes. So, it's not a touristy thing, most locals wear these, men, women and children. Fashionable, very comfortable, and at reasonable prices. They came in all colors you can imagine!
Curiosity: the abarcas' soles were traditionally made with rubber from discarded tyres. Now some still are made this way.
If you are a shopaholic you may struggle on Menorca, the two cities Mao and Citudella are you best bet for maxing out your cards.
There are several chic looking clothing shops in citudella, head down by the Cathedral.
Be warned sizes are on the small side.
Both cities (and some smaller towns) have an excellent choice of shops, drugeria/perfurmeria that sell beauty products, common brands but also more exclusive ranges that are harder to find in the UK.
Outlet malls on the main road from Mao to Cituadella specialise in leather goods and pottery.
What to buy: Leather goods.
(personal choice) Beauty products
balearica has a full catalog of sandals, comfortable shoes for the whole family.
What to buy: abarcas
What to pay: paypal. credit card