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.
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Mind.Blown.