Take time when you are writing to stop and think about a face, a smell, a moonbeam or a knee. Let other thoughts merge with the object/sense/person you are describing and let something amazing lend itself to your description.
For example, my current favourite author, Barbara Comyns, describes a woman's face as '...like a melting strawberry ice-cream, rather a cheap one.' (Our Spoons Came From Woolworths). The ice-cream, soft, pink and oozing, creates a perfect picture of a soft fleshy woman. The addition of '...rather a cheap one' is brief, but blistering. I love it for its scantness.