There is nothing worse than trying to cut anything with a dull knife. I think steak is the worst but if you have a tough steak, you have a tough steak no matter how sharp the knife.
Here is a do it yourself knife sharpener. It has two slots, one for coarse, straight edged knives, and slot two that is for fine honing, straight or serrated knives. I used my paring knife that I must have had for 20 years and brought the edge back to life. I tried it out on a paper edge and it sliced right through. This sharpener has a safe place for your hand while you sharpen the knife with your other hand. If you're a lefty or a righty, it doesn't matter because it accommodates both.
I received this product at a discount in exchange for my honest and unbiased review.