that is why i keep my isp account for 'official' stuff only. i know when i log on i'[m not gonna be bombarded. mostly i just delete in bulk from yahoo, as i've done today.
Never used Hotmail anyway, except to do articles about spam. I use my ISP account and another one for pro and personal mail. And my Yahoo account for discussion lists and forums.
Even have a special account at Care2.com to be used when my mail is required to download a software.