I’m sure by now you’re aware of the new feature in Photoshop called Sky Replacement. This tool allows you to easily change the sky in a photo and adjust it to match your photograph. Although Photoshop comes with a library of skies that you can use, many people don’t realize that you can use your own sky photos, and thus still be able to claim full authorship (or maybe you just like your own skies better). Go to Edit>Sky Replacement, and click on the sky thumbnail at the top of the dialog to open the sky library. Look at the bottom of the drop-down library, and you’ll see an icon that looks like a square with a plus sign in it. Click that icon to browse for your own skies. It supports many formats, including RAW, JPEG, PSD, and TIFF.