Display the images in a folder, then press enter to move the current displayed image or arrow keys to navigate through the directory. A small tool I made in about an hour to go through images one by one and move them without having to go back to the shell / explorer. Latest release can be downloaded here.

How to use:
Put a directory path in image directory textbox. If it exists and there are images in it, it will load up the first image in the folder. For navigation, use the right arrow and left arrow keys to move forward and backward. Press enter to move the current image to the output directory if it exists.

A small example of me moving the pictures of flowers out of the birds folder as soon as I see them.