D&D 3rd Edition House Rules

General

Races

Elves:

Half-Elves:

Humans:

Character Classes

13 1 1st
14 1 1st
15 1 2nd
16 1 2nd
17 1 3rd
18 1 4th
19 1 1st, 1 3rd
20 1 2nd, 1 4th
21 1 3rd, 1 5th
22 1 4th, 1 5th
23 1 1st, 1 6th
24 1 5th, 1 6th
25 1 6th, 1 7th

Clerics:

Monks:

Rangers:

Sorcerers:

Wizards:

Feats

(note that general level requirements are superseded by specific requirements for individual items, found in item descriptions in Dungeon Master's Guide)

Combat

Spells