Your delicious little leaves deserve the utterly minimal effort of a homemade vinaigrette, and they deserve to be dressed ahead of time, lightly. You wouldn't want your host putting you out in front of guests naked, would you? (Maybe you would. I don't know you.)
Nothing worse than tossing your own salad (stop it!). Individual salad bowls do not have the room to do it yourself at the table, so some leaves are covered and others are dry. Totally unacceptable.
If you are a remotely interested cook, and I mean remotely, you probably have everything you need on hand: It's three parts good olive oil to one part acid - vinegar or citrus, or a mix of the two. That's it.
Got it? pour three tablespoons of cold-pressed extra virgin olive oil in a bowl. Add 1 tablespoon acid -- balsamic vinegar is sweet, red wine vinegar less so, cider vinegar works on and on. OR squeeze in a lemon (not the whole thing, just a tablespoon, or maybe a hair less). Whip it together with a fork until its thick and cloudy (this is called emulsifying... the natural way). That's it. You're done. Less time than opening the fridge and plunking that nasty cold bottle on the table.
You can gussy it up with all sorts of stuff -- I usually add a touch of Dijon mustard (not regular mustard). You can grate in citrus zest. The juice of a tomato. A wee bit of honey. A tiny bit of coarse salt. Lime juice (fresh only). You can put in grated ginger and replace a little of the oil with sesame oil (then add in just a splash of soy sauce). Minced garlic. Minced shallots or scallions. But let them all float in a sea of three to one, olive-oil to-acid.
Put this mixture in the bottom of a salad bowl. Not too much -- too much and your salad is limp and wilted and you don't taste any green. Put your cleaned greens on top (I am partial to JUST greens -- a mix of baby lettuces, especially arugula, maybe purslane, snipped herbs -- basil, tarragon, dill -- edible flowers for gorgeousness (try the lavendery basil flowers you snip off your herb garden). Toss gently, scooping up from the bottom. As the leaves touch the bottom of the bowl they will get a nice touch of dressing.
If the salad is too dry, add a bit more, toss gently.
BANISH THE BOTTLE. In this case, it shall be I who thank you.
("You're welcome, Pam!")