You need to crop an image in Photoshop or GIMP but you need some precision with the rectangular selection, so you zoom in. This makes it cumbersome to make a select, because you need to drag-hold-scroll until the lower right corner is visible. Crazy! Here’s an easier way.
Step 1: First Select a Small Rectangle Upper-left
First select a small rectangle upper-left. Just make sure the upper left corner is right. The lower right is random. See image.
Step 2: Bottom Right
Now find your way to the lower right of your picture. No need to hold the mouse down. Again make a small rectangular selection where only the lower right is important.
Step 3: Crop
And you guessed it: the Crop command now crops as if you had selected a single larger rectangle! Works in both Photoshop and GIMP.