Here is a tip that few people know: when you are working on a photo / layout in Photoshop, and you want to quickly show or email the current state of your editing to someone, you do not need your photo / layout at all save as a jpeg and then drag it to your mail program. No, you can simply click on the Share button at the top right. You will then be given the choice of a number of options, including sending the high resolution photo or a smaller version.
