Straighten your horizons in just a few clicks
It's pretty common to to be given a tilted photo to use on a project. I find the tilted horizon to be distracting so a straightening is in order. Most of the time I see people placing a line or rule over the photo and straightening a photo by sight. This may be adequate for some photos, however, if accuracy and speed are are necessary this trick will allow you to straighten photos like a pro.
This is old trick to fix photos with slanted horizons. I think Scott Kelby demonstrated this technique way back in photoshop 5 so it's not a new trick by any stretch of the imagination. Designers today are still amazed when I show it to them. This trick is so simple and so easily overlooked that I just had to put it out there one more time for anyone that might be newer to photoshop or work infrequently in the program.