It doesn't matter what time of year it is - you always need to take care of your lips. In the summer you need moisture and SPF and the same goes for winter. We all know how much having chapped lips affects everyday life - it drives me nuts that's for sure, especially when they start to get really sore and you can't wear lippy without looking like a lizard. Gross.
I featured Mint Julips from Lush a while back which is a basic sugar scrub designed to remove dead skin from your lips. It's a bit of an odd sensation but it really works and I just tend to use it once a week with a cotton bud, particularly if I plan on wearing a bold lip colour. I follow up with a decent lip balm and my two favourites are Carmex* (Cherry scent optional!) which is quite light and good everyday-er and for a slighty thicker application, I swear by Neutrogena's Norweigian Formula SPF20. I got this in Spain last summer but I'm sure you can get something similar over here. This is the only lip balm I've found really works for super sore lips and years ago I was told by a dermatologist that Neutrogena was the best high street brand for this kind of thing so I've used it ever since!
What do you use for your lips in the cold weather?