If you have your email through your internet provider, you may want to consider switching to GMail (my favorite – or another service of your choice). If you relocate somewhere your provider does not have a presence or decide to switch providers, you are going to have to switch to a new email address in a hurry. This way you can make a methodical transition to your new email and you won’t feel “locked-in” to your provider.
If you decide to create a new email address, be sure to set up forwarding from your old address to your new address. This way if some senders fall through the cracks, you will still get their emails and can update them with your new address.