This one is for people who like to control their system start-up.
In E17 there is a simple way to add program to start-up. You just need to add the programs shortcut in a module that is intended to run it when you turn on your computer.

Well, trouble is if you have more than a few programs that needs to be started with the system. First trouble is to hunt the icon (when your system ages and number of programs goes up, this is harder than one could think). Second is, what if E didn't read any of your programs, that is, there are no default shortcuts. You should first create them by hand and load... bla,bla,bla. To much of clicking. This is linux, there shouldn't be that much of hassle anyway.
Sweet trick that I've been using for years (note that you could use this kind of action with additional tweaks in any DE or window manager). It's rather simple.
1.Go to your home directory and create file. Lets call it startup.sh
2.Make it executable. (we sad no clicking so open terminal and type: chmod +x /home/your_user_name/startup.sh)
3.Open the file with any txt editor and paste the following example:
////////////////////////////////////////////////////////////////////////////////////
#!/bin/sh
gnome-volume-manager &
opera -notrayicon &
net-applet &
# This is just an example, tweak it as you like it. I preffer gnome volume over e17
# volume manager so the first command, and I like to start Opera right away, and no
# tray icon for browsers, thank you very much. At the end, i just like pclos network
# applet.
/////////////////////////////////////////////////////////////////////////////////////
4.Save the file.
5.Go to Main Menu/Settings/Settings Panel. Choose Apps/New Application
6.Now give name, comment and a shiny icon to your new shortcut. The important part is "Executable" field where you need to set the path to startup.sh script that you made (it should be /home/your_user_name/startup.sh).

Apply.
Close.
7.At the end, just go back to Startup Applications, find the new shortcut you created and add it to startup and finito. You now have control your startup by adding or removing program commands in the startup.sh script.
This is the old E way of doing this but I still find it really easy.
Have Fun!