In the B/X game I’ve been running for the past few months we’ve introduced a number of houserules, including a system of simple 3E inspired feats. New characters get one feat at level 1, and then can select an additional feat when they reach a certain XP threshold (rather than at certain levels, as some classes require a great deal more XP to level than others). I’ve also introduced a rule that allows characters to ‘respec’ their feats for a GP cost; they only get a max of 4 feats so I didn’t want to screw them over for a poor choice made early on in a character’s career, plus it’s a gold-sink.
Note that some feats are based on additional houserules we’re using, such as granting a +1 attack bonus for dual wielding one-handed weapons.
So, here’s the PDF. Enjoy.