[hands_of_blue]

Since my Sunsilk stockpile just keeps growing, I thought it would be good to know what the shelf life of shampoo is...so I googled for some info and found a couple of webpages saying shampoo should last 2 to 3 years. Can anyone confirm this from experience? I've used some Suave shampoo that I'm pretty sure was older than 3yrs without noticing anything wrong with it. I'm not even sure what it would mean for shampoo to "go bad" -- does it get thick, or stinky, or just not work as well?