Windows: Dragging stuff to the Recycle Bin can be annoying if it's hidden amongst the clutter on your desktop, behind all your windows. MiniBin puts it in your system tray, making deleting files and emptying the bin super easy.
It may seem like a small tweak, but MiniBin really does make dealing with deleted files easy. Not only can you open up the recycle bin just by right clicking on it, but you can even empty on it just by double-clicking — no showing the desktop necessary. You can also turn on and off sounds, the progress bar, and the confirmation dialog when you empty it by opening up its preferences. It also lets you tweak its CPU usage for older machines, and customise the icon that shows up in your system tray. It's a simple app, but saves you the annoyance of showing your desktop every time you want to deal with the Recycle Bin.
MiniBin is a free download for Windows only.