Do you smoke?
Miss Snark is not going to wag a finger in your face ... Miss Snark has enough vices of her own, thank you.
Do you smoke in the same room you write? How about the same room where you store your printer and manuscript paper?
Moments ago I opened an envelope in my never-ending pile o'slush. The odor was not overwhelming but it was definitely noticeable. And nasty. Old ashtrays. Down at the heels barrooms. Derelicts who need a bath. NYC subways.
The paper was crisp and clean, the prose was ok, but nothing fancy. All I wanted to do was burn it.
Smell is a big trigger for memory. You know this. It's why the scent of the perfume you wore when you first danced with your true love recalls that night in vivid detail. It's why chocolate chip cookies in the oven make you feel safe. It's why you'll never use certain shampoos again.
If you smoke, the scent adheres to the paper. There's a stiff no smoking law in NYC now. Smokers huddle in doorways (despite signs telling them to stand out in the rain) and grab quick puffs as they come up the subway stairs. The smell of cigarettes and tobacco doesn't have good associations for most of us.
Sometimes we're not aware of why we react negatively to something. It's just "a feeling". One of the things that can produce that "feeling" is scent. Avoid shooting yourself in the foot subliminally. Store your paper in a smoke free room. If you smoke, you can't tell if your paper smells. I can.