I like these types of images for creative mood boards on instagram, but they have so many uses! Mock up your products to show your friends and clients, or just brainstorm some new ideas!
Create your stationery or header mock up. Save money as you can create very different types scene with the same files. Lot of items have multiple positions for a better realism. These files are in high resolution, so that you can make small or large scenes.
What can you do with it? Check out http://crtv.mk/b0QXw