There's no doubt that with a little bit of thought and imagination, you can expand your wardrobe with just a few items.
Take for instance vests of any length and style. I like the Making It Big range of clothing - it has a fine reputation and continues to bring out interesting and colourful clothing for the plus-size. Vests can lift an ordinary outfit, and compliment pants whether slim tights or loose cool ankle length.
Visit their site at http://www.makingitbig.com
At present they've got a Great Sale going on.