I bought some bacon yesterday. It was a subconscious reaction to enjoying some bacon for breakfast while I was looking after my son. We ate out, so I thought I'd buy some bacon to enjoy at home. I also bought a bag of mixed lettuce leaves and some vine ripened tomatoes (the ones still attached to the vine: does the vine make any difference apart from visually?). We had some thin sliced brown bread, so this morning I offered to prepare a cooked breakfast. My daughter wanted a bacon and tomato sandwich, my son a bacon and lettuce but I had the classic BLT. I even added a little mayo and a few drops of ketchup to mine. Much better than shop bought, you can't beat a home made BLT. The freshness of ingredients is everything and at home this is something you can guarantee.
But when you can't make a sandwich yourself and you are at some place that is not familiar and have limited choices of where and what to eat. You can bet that a sandwich outlet, even if it just a chiller cabinet in a newsagents, will have a BLT. I find the BLT a reliable and comfortable hunger quencher. The photo below is not my own, but mine was almost the same.