SALAD SUPPLY SURPLUS

I'm in one of those moods again where all I want to eat for dinner this week is enormous salads and hunks of protein (in this case, tofu that I'm going to fry up). But here's the thing: I couldn't remember if I had any dressing back home, so I bought a new bottle. I could very well have a bottle already sitting on the shelf at home. Maybe even two: One on the shelf and one in the fridge! The thing is that I eat salad somewhat infrequently and my housemates sometimes use my stuff, so my mental inventory of the salad dressing I own is hazy at best.

What I need is a salad dressing version of Eggs & Milk Minder 1.0b.