Most of us own some sort of a blazer, and it's a wonderful staple in a capsule wardrobe.
Here's a challenge:
Think of different ways of wearing that blazer.
If you normally wear it in a formal kind of outfit, think of ways of tweaking it into a more casual style. Wear it with jeans instead of those dress pants.
Layer it. Wear it as a layer under a larger coat.
Belt it. Casual belt, party belt.
Pin a brooch on it. Pin three brooches. AND a belt.
Scarf it. Turn up the collar and wear the scarf under the collar, wear the blazer open over a nice warm turtleneck sweater and bundle a scarf around your neck.
Here's my take on five ways to wear one blazer: