Unclutter!

Yoink simplifies drag and drop between windows, apps, spaces and fullscreen apps.

Drag a file onto the dock icon and your fully customizable grid of destinations flies smoothly out using core animation.

ShoveBox catches all those little scraps of information that you can't act on now but would rather not forget. It sits up in your menubar, waiting for you to drag in text, images, urls, and more.

Dropzone for dragging and dropping files and text clippings

When you drag an item to the edge of the screen, a shelf will slide into view. Drop your item on the shelf. You can drag to any part of the screen edge, but not the same edge that has the Dock or the menu bar. You can also create multiple shelves (up to a maximum of 20). If you have multiple monitors, Dropshelf will work on each screen.

Although Windows already has an option to hide the mouse cursor whilst typing, which can be found under Control Panel/Mouse, this is respected on a 'per application' basis.

DragonDrop makes dragging and dropping on your Mac way better.