If you have X running, open the Midori web browser and navigate to the URL of your favourite electronics supplier.
If you find your module 'drops out' from time to time, you can fix it fairly easily with a command line fix (thanks perseus286!)
Create and edit a new file in /etc/modprobe.d/8192cu.conf
sudo nano /etc/modprobe.d/8192cu.confand paste the following in
# Disable power savingThen reboot with sudo reboot
options 8192cu rtw_power_mgnt=0 rtw_enusbss=1 rtw_ips_mode=1