Best common table canon? Best rules to use, source guide, common tweaks/homebrew?

[Beoric]

There was a pretty common (I think? I've seen it used, at least, on some tables) house rule about allowing the "mathematic correction feats" to be free for the players.

Like, a free expertise feat of choice at start/during heroic (like... lvl 3 and over? I don't remember when it mathematically start the divergence) and a free improved defense @ paragon.


I also think that the Magic Item Compendium was a good resource to "extend" the default and a little bit lacking base magic item list

I seem to remember on the WotC forums I used to see versatile expertise at 5th and improved defences at 7th.