if you are the only user on your machine, and don't want to type your login/password on each login, you may enable auto-login.
i've made the job for you: edit your file /etc/inittab as root
sudo vim /etc/inittab
ou
sudo geany /etc/inittab
then edit lines 55 and 56
to obtains a result like that
replace “arpinux” by your login.