The Gaming Crew

We all roll with different types of gaming groups.  Some big, some solitary.  I personally have been blessed with a small but hardcore group of friends for about 10 years.  Basically myself and 3 other people.  But as the years have rolled on we have gained wives, children, and $2000 a week cocaine habits.  It's great that we have each other to game with, but the drawback is we don't get out to play at the local store very often.  That tends to have a negative affect on the WAF (wife acceptance factor).  As a side affect we can get in to a bit of a rut when it comes to army variation.  We have been trying something lately to shake things up.  Three of us make an army at a given points cost and then 2 of us randomly select an army to play.  It makes you think in broader terms and forces you to make an army that is much more balanced than normal.  It also helps that each of us have at least 2 armies to choose from.  It's not a super competitive way to play and it lends itself to more thematic games.  All this makes me wonder what everybody else's groups are like.  What's the average size?  What kind of house rules do they use?  And do they do most of their gaming at home or at a store?