Hey! It's a very English/Irish thing, i'm sure, but cucumber sandwiches are still my go-to summer lunch. From when i was ten, my mom used to put me on the subway with a bagful of em (easy mayo, lots of pepper, 10x as good when they set up a little) and 80 cents, 15 each way to Fenway & 50 cents for a bleacher seat. I'd pitch peanut bags to customers for the old vendor (who'd been train porter for all the original HOFers backinaday) on Brookline Ave in exchange for a bag of my own, go in for BP, a sammy @ gametime another at the stretch. Why yes, i did live in the 19th C, i think.
From then on, cuke sammies have been what i ate on a hot day - painting houses, to the beach, in the golfbag. Dont go out much anymore @ 147yo and put breakfast sausage on my cuke sammies now (one of the 400 reasons i'm over 300lb), but still find them very refreshing.