Ep 28 - Unusual Party Sizes and GM NPCs

We'd all love to DM/GM for a 4-person party but it is rare.  More often we'll have 6 players or even 8-9 who want to play in a campaign even if we only start off with 4.  How do you handle these huge parties or small parties of less than 4?  If you have a small party, how do you add capabilities to the party with NPCs?