No, we didn't plan it--we swear! Jennifer Merritt, another iVillage editor, and I both came into work today rockin' our trendy boyfriend blazers. After all, it is meeting Thursday. Great minds think alike.

While I sported my boyfriend blazer with black leggings, an edgy tunic-tank and black suede booties, Jennifer rocked hers with black leggings, a striped sweater-dress and flats. Both work in very different ways!

Interested in rockin' the boyfriend blazer this fall, too? Here are some do's and don'ts to keep in mind:

Do wear them with leggings.

Don't actually wear your boyfriend's (or husband's) blazers--they'll look too boxy!

Do wear them with skinny jeans.

Don't wear them with wide-legs or flares.

Do wear them with boyfriend jeans (if you're going to be pairing them with feminine heels, that is).

Do wear them with tunics.

Do wear them with dress shirts.

Don't wear them with tight and fitted tanks and tees.

Do wear them with frilly and flowy tops.

Do wear them with booties and platform heels.

Do wear them with flats.

Don't wear them with high boots. Doing so will break up your proportions the wrong way and shorten your legs.

Do roll up the sleeves if it has a white lining.

Don't roll up the sleeves if it doesn't have a nice lining with a contrast in color.

Don't wear the ones with shoulder pads. That's so 15 years ago!

Do accessorize with lots of jewelry to femme up the ensemble.

--Ysolt