Summer's here, and you know what that means: ladies need to go sweater shopping. The office gets chilly once the AC is turned on. But who wants to carry a sweater back and forth to work every day? Thus, the search is on for the perfect office sweater. It's light. It goes with everything. It can be kept on the back of your chair for a day or two. Here are a few that I've found:

1. I like the The Ann Taylor Loft Tie Front Shrug, which costs $39. It's cotton and has three-quarter sleeves, so it's perfect for summer. Plus, I like that it ties in the front; not everyone looks good in a sweater that opens loosely on the sides. I also like that my mother-in-law works at Ann Taylor Loft, so I generally get the store's clothes for free.

2. Michelle Obama hasn't worn this particular J. Crew cardigan ($78), as far as I know, but there's no reason you can't pretend that she did. Same goes with this one ($148), which looks a little like the one she wore to meet British Prime Minister Gordon Brown.

3. I've gotten a lot of compliments on the BCBG Max Azria sweater I wear all winter long. For summer, I'm thinking of getting this one ($198) or this one ($168). But the prices are rather steep ... maybe I'll save this for after the recession. (It's going to be over soon, right?)