Or do you have some automated program that does it for you? I check my stats several times a day and boy does it get tiring having to retype my e-mail and password each and every time. I wish they had something similar to Gmail where they remember you. I understand it's sensitive information but still, it gets tiresome!
Download adsense notifier for firefox, this way you can check your adsense earnings without having to login each time! https://addons.mozilla.org/firefox/500/
Get the FireFox toolbar, it logs you in automatically and checks it every 20 minutes for you. I haven't logged in through the site in a long time. EDIT: daniel beat me to it
I know, logging in to see how much money I've made is horrible, I've almost decided to quit adsense because of all that work! heh
Just create a Personalized Home at google.com (works better if you have a gmail account). link your adsense account to your home page and you will never have to login again
I use revenue checker which I love, set so that it checks every 60 minutes, that way I know around every hour how I am doing generally against what I usually do. Sweet program.
I've just got the Firefox extension mentioned above. Have to say it takes up very little space, and really saves the time and effort of logging in! Very useful in telling me how much harder I need to work!