SkinPack AndroidL is a Windows desktop appearance beautification package, it can fully dressed your Windows UI up as the style of Google latest mobile operation system - Android L (Android 5.0 Lollipop).
As another excellent one of numerous alternatives of Windows built-in Notepad, EditPad supports almost all the text editing tasks. It has two editions - Lite and Pro, the former is for individual users and free to use, the latter is tailor-made for programmers or other professionals which is commercial.
If you are tired of the mainstream web browsers, you can try Sleipnir, one browser can provide users with highly customized functions (to change the browser's designs and settings according to requirements), a dual-core browser which is called the world's first in Japan. Sleipnir is more suitable for advanced users.
About the acceleration effect for download speed of Internet Download Manager (IDM for short), I believe people who used IDM can not leave it any more. Here, we do not need to introduce its features again.