So bye bye Covergirl lashblast and rimmel eyeliner into the bin you go!
Anyway on to my point, here are the shelf lives of your make up!
Eye shadow: Lasts up to 3 years. Watch for discoloration and, if you live in humid climates, mold.( so even if you sadly love them and they are ancient, please put them in the bin!)
Eye Liner: sharpen regularly. Can last up to three years. (Yeah right! mine lasts a couple of months)
Mascara: Bin after 4 months, don't pump the wand as it lets air, creating more bacteria! eww try swirling the brush instead
Lip gloss: 6-12 months. I know mine smell funky after a while and when they do, the go in the lip gloss graveyard!
Liquid foundation: 12-18 months. Be sure to check regularly for a weirdo smell! And if the product starts to separate in the jar,BIN IT!!
Powder foundation: 2 years.
Lipstick: 2-3 years. check regularly for odd smell and mold in humid climates.
Also washing brushes and sponges are a must! Preferably once a week! I tend to wash them at night, so they are more or less dry by the morning or do it on a weekend when you probably wont wear make up!