[MENTION=6691336]groklynn[/MENTION]: Does Microlite even have "feats"? I've sometimes wondered whether the WP/NWP concept from 2e is better than the way-out-of-control "feat" system.
Microlite20 uses 3 atributes and 4 skills, but I think it's a good concept but bad design.
Let's see, we could use Str, Dex, Con, Int, Wis, Cha and Com (Combat) Exp (Exploration) Soc (Socialization or whatever

) "skills" that used in combination with every ability. So you've got attribute modifier and your growing-per-level base "skill" modifier (fighter=Str, cleric=Wis and etc.) and secondary modifiers for all non-profile skills (e.g. rogue gains +1/level for Com/Exp/Soc in Dex but all others grow at 1/2 slower rate).
And to complete all this stuff you've got some sort of tags, e.g. [sword] or [nature] that basically add some benefits for certain checks.
Fighter with +3 from Str and +3 Com from his level could boost his attack with additional +2 with [sword] feat or call-it-how-you-like while using sword. Tags could be combat actions (different spells, attacks etc.), upgrades (some benefits and training) and utilities (some actions that could be used outside combat like movement, stealth, lockpicking, healing and etc.)
So instead of endless lists of skills, feats, paragons, classes, races, prestiges you could have database with tags. Tags with prerequisites could form branches and trees of specialization (e.g. [sword] -> [sword specialist] -> [sword master] and different additional tags for certain attacks) that could build class or theme or background or race or whatever.