Hotmail are now offering users the choice of setting up multiple email aliases, all accessible from the one (existing) account.
What is an alias?
An alias is simply a secondary email address which is different to the main email address but is still connected to and accessible through the primary account.
What can aliases do?
Aliases can be used to classify email communications and keep them separate from the personal (or primary) address; so emails regarding business transactions, networking, etc can be channeled through different individual aliases.