Do You Make Your Own Salad Dressing?

I hate making salads. I've said it before, but I just find that they involve so much work and, many times, have little payoff. But in an effort to eat heathier, I'm trying to make a super quick and easy small side salad with every dinner. Here are my rules: I do not want to have to chop anything and I can't use an extra bowl/dish/carafe to mix the dressing. The results? Something pretty boring but tasty:

1) prewashed mixed greens (I feel guilty about using these, but sometimes you have to take shortcuts)

2) cherry tomatoes

3) drizzle of olive oil, red wine vinegar, salt, and pepper

Sesame-ginger-dressing_300 Store-bought salad dressing would also fit in line with these "rules" as well, but I haven't found one I love. I should try some of the Real Simple salad dressing winners, but I'm very picky about dressing (I don't really like it). Have you tried any of them? Do you make your own salad dressing or do you swear by a brand?