Two heads are better than one
Getting a trusted friend who has similar or different fashion sense to pay a visit to your wardrobe and work out some outfit looks can be refreshing. That friend can introduce you to a whole new way of wearing the same clothes. Both of you can even choose to do a closet raid on each other by swapping clothes.
If all else fails, why not shop the clothes. Gather friends to do the same and organize a sale to help you make some money to get new ones. Or just follow all the steps to create variety in your wardrobe.