Big Bang Theory Quote
Sheldon: There are a lot of advantages to buying in bulk. For example, I noticed that you purchase your tampons one-month supply at a time.
Penny: What?
Sheldon: Think about it. It's a product that doesn't spoil and you're going to be needing them for at least the next 30 years.
Penny: You want me to buy 30 years worth of tampons?
Sheldon: Well, 30, 35... When did your mother go into menopause?
Penny: I'm not talking about this with you.
Sheldon: This is a natural human process, and we're talking about statistically significant savings. Now, if you assume 15 tampons per cycle and a 28-day cycle... Are you fairly regular?
Quote from S01E04 - The Luminous Fish Effect