Albumen
Don't wait for me!
A number of email systems allow you to add suffixes to email addresses by adding '+' and the suffix to the address. For example if I was seagulls@gmail.com I could send messages to seagulls+child1@gmail.com and seagulls+child2@gmail.com and they would all come through to seagulls@gmail.com so problem solved.
Obviously test this out for your particular email provider before you register anything with it.
Mind.Blown.