The problem is that the locals all think you know the obvious.
Without realizing it is only obvious to them because they've lived here a long time.
To the rest of us, it is stuff you have to find out. For the first couple of years we were here, even the supermarket in Whitemark had no sign. Just petrol pumps outside. If you didn't know, you should starve. They're things you could assume the island doesn't have otherwise. The secret behind the green door(next to the supermarket)... is the hairdresser. It often sounds like the song in there, but I don't know. It's not one of my regular spots, as you may gather. She flies in and does mass cuttings, but there are two other hairdressers on the island, Chi (Emita) and Kelly (down in Lady Barron. She cut our Clare's hair for the wedding). That makes it about one hairdresser for every 230 people. I have no idea how this compares to mainland ratios.
Essential facts - there are 2 supermarkets. Look for the pub in Whitemark. It's the token double story building, so it may not be too much of a challenge. Walkers is straight across the road. It is not open on Sundays. In Whitemark not even parachutes open on Sunday. However in furrin parts, probably because of the Godless Heathen in them distant parts (grin. We have everything here! But Whitemark has 2 churches and Lady Barron is deprived with only one. And on an island with the main towns all about 20 km apart, you'd think they were 500 miles apart and possibly in another country to hear some folk talking about the others) Lady Barron Store is open on Sundays until three in the afternoon. It also sells petrol, and Max does a good coffee. If you drive into Lady Barron on the main road look for a VERY small sign on your left that says 'Lady Barron Store'. Turn left off that again at the next tar road, and look for the petrol pumps. If you arrive on the island on Sunday evening be sure you don't need fuel or tucker, because you can't get any. Oh and don't drink the town water because it is untreated the pipes are full of lead.
You can buy grog at the Pub, the Sports club (keep driving past the pub. Go through the golf coarse and the road takes you there) and Lady Barron Tavern. Freckles (in Whitemark) sells wine.