Id drop the 3 iron, how often do you even need to hit it let alone work it both ways, I'd certainly find a lot more use for a 51 degree than a 3 iron but i dont know your game. I personally took my 3 wood out of the bag, I hit my 5 wood far enough to use it on holes where I dont use driver and I hit it almost as far as a 3 wood off the ground so I decided I have far more use for 4 wedges than a 3 wood.
I play Driver, 5W, 4H 5-pw and then a 47, 52, 56 and 60. (My pw is 43 or 44 degrees)
I actually have answers to these. The weather channel makes it easier to not get caught out on a course during a storm. And carts make it far easier to leave a club behind. The latter is a solution that creates the problem itself.