Right now, you can snag the excellent Patagonia Houdini jacket for just $64.93 in the REI winter sale. That's a huge saving of $44.07 off the regular price, and a great deal on a lightweight windbreaker that'll serve you well all year round, whenever you need an extra layer to keep out the chill.
I've owned a Houdini jacket for a couple of years now, and it's easily one of my favorite items of running gear. It's super light (the men's size M weighs only 3.6oz) and can be easily shoved into its own chest pocket, which doubles as a neat stuff sack so you can carry it in your running backpack.
