I use Windows Notepad a lot and, a few months back, I posted a tip for Send to... Notepad to help people open text files from a context-sensitive right click. Whilst watching me struggle to edit a load of text files with strange file extensions (as he taught me how to use PHP yesterday) Alex came up with another suggestion. It's probably well known, but if you create a link to Notepad on the Windows quick launch bar (just drag and drop from the start menu), you can drag and drop files onto it and they will open in Notepad. Simple, but very, very useful!