Disable The Trackpad While Typing

To disable the trackpad while typing just run this command in the terminal

syndaemon -i 1 -d

In xfce, if you want to start the touchpad delay at boot go to Settings>Xfce 4 Setting Manager
Under Session and Startup, in the Application autostart tab, click Add

Create an entry for the touchpad delay

Name: Touchpad Delay
Description: delay the touchpad 1 second
Command:

syndaemon -i 1 -d

- hit OK and restart your session for the delay to take effect.