FlashPad
Software Download (http://www.haoxg.net/download/flashpad-1.6.3.zip)
Source Code Download (http://www.haoxg.net/download/flashpadsrc.zip)
Press Alt+Z at any time to bring it up, and press the shortcut again to hide it in the system tray. It is very small and practical, with a size of only 984 KB.
Unlike the built-in Notepad in Windows, FlashPad automatically saves all inputted content and supports multiple TAB displays.
You can use this software in your daily work to quickly jot down ideas, memos, or numbers.