I'm using a combo of mailbox.org and Addy.io for aliasing. Works great.

I pointed all 13 of my various emails to a forward@mydomain email on Addy. Put a rule on mailbox.org to throw those emails in a folder called "change me", and ive been going through daily and changing or deleting or unsubscribing from everything that hits that box.

It feels nice only having one email again but also having the ability to make and turn off email aliases to stop junk and spam.