i started with endjunk for the primary reason of creating a disposable email address
that service ended so i now use spamgourmet but their control system is not the greatest, considering its free i cant complain
i may try pobox and if it looks better im happy to pay $20
so lets say i am buying a product or registering on a forum, i dont want to use my personal address because sometimes spam will just keep coming with no unsubscribe option
spamgourmet allows me to do the following
while registering i use the sites domain in my new address ie;
amazon.myusername@spamgourmet.com
now if i get spam i can disable that address and my real account is safe
my only worry is that spamgourmet may close as its totally free and not sure how long they will support