Fellow Canuk, I say this with all due respect - I think you need to review normalization again. Maybe a different resource? The simplest way to explain normalization is to say that all the ATTRIBUTES of an ENTITY are in one table; one table for each entity. Your customer is one entity. Sales in another. Purchases in another. etc. So address goes in the customer table as it is an attribute of your customer. Then there are lookup tables (lookup and multi value fields should be avoided at all costs). I can provide what I think is a good link on normalization if any of this is new to you and you want to take me up on it.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.