WinSnap provides a feature seen in many X window managers. It makes the edges of the screen "sticky" so that when you move a window near them they tend to snap to it, making it easier to place them quickly. The top of the iconbar can also be made to behave as a screen edge.

This is a complete rewrite in C for 32-bit compatibility and easier code maintenance. It now works correctly with Toolbox applications, and snapping of windows to each other (for systems with the "nested" window manager) could be added reasonably easily. When I can be bothered. Or if anyone else can.