Don't want to remove programs from CCleaner startup again and again

Hello everybody, can you help me with my problem, please. How can I manage startup programs in Windows 7 in an efficient way? I've been using CCleaner to prevent some programs to load at startup. I have even deleted some items from the startup list of CCleaner. But there are still some programs that add to the startup list again every time I run them. These programs are iTunes,...