We all know that - mascaras by 3 months, cream products by a year and powders, three. But do we actually "abide" by that rule?
Personally I do stick to their use-by date (for skin care items and food anyway. My husband can testify to my constant nagging of him consuming expired bread and milk!! Eww! >.<). For items with the "good for after opened" icon, I'll try to use it up within that timeframe, but am I little lenient - one or two months after that is ok I guess.
I'm terrible with makeup though!! My trusty 6 year old Maybelline brow pencil (that has been discontinued for eons already) is still going strong although the cap has yellowed significantly! =X I usually trust my eyes and nose - if it has changed color / texture and has a funny smell to it, then it's time to officially toss it into the bin, otherwise it's still good to go - so far, so good! Yes, I'm horribly biased like that so sue me! :P
How about you? Do you discard your beauty items once time's up, or like me, do you hold on to some of them for *just* a little longer! lol! Answer away! :D