I did such an impulse buy last week - buying a Topshop jacket after deliberating for about 5 minutes. My home sewn winter jacket has a fabric that pills like crazy (I suspect it's because the wool is very loosely woven) and despite several sessions with my electric pilling shaver the jacket keeps churning out huge balls of wool on a daily basis, so I was like "I can't take this any more".
I hardly ever prowl the high street stores but after a wonderfully fun sushi and photography date with a friend, I accompanied her to a mall to check out Zara's take on herringbone wool pants, that seems be all the rage this fall. The pants ended up being not quite right for her and then I suggested that we visit Topshop where I found this swing jacket and just fell head over heels in love. It reminds me of a Swedish classic - a grey wool surplus jacket from the Swedish army that has almost an iconic status. Plus with the naval theme going on it pretty much sealed the deal. The wool fabric is a bit thin though so it won't work on really cold days, especially since the narrow sleeves doesn't allow room for big sweaters underneath.