I'm surprised no one's mentioned using a cold wet teabag on your fingertips.

It's an old picker's trick. The tannic acid toughens the fingertips.

The cold tea bag's also great for after you've played your fingertips sore. Just feels good and takes the pain away.

It isn't an instant remedy, but will toughen your fingertips in a few days max.

And you can have a cup of tea off the bag first before you do all this. Win-win all around.

Bob