I always thought mechanical pencils went obsolete 15 years ago. But to answer your question, use pens instead.
Not at all. Any art or drafting store has loads of them, plus they offer huge conveniences over wooden pencils.
I love a good mechanical pencil. I have a fascination with writing instruments in general, and could probably go on forever about them. I believe I've asked for "a nice pen" for Christmas every year for the past decade, and I always carry one with me. In school, an entire pocket of my backpack was full of various pens and mech pencils. The first thing I do when I get a new one is completely disassemble it to learn its mechanisms for operating.
I used to despise mech pencils with the itty bitty erasers, but have grown to appreciate them for correcting very minor errors in a pinch. I think trying to use them in school to erase a whole sentence traumatized me.
Over the years, I've settled on my favorite mechanical pencil being the Pentel Twist-Erase, that I picked up in college. It was a .5, and I recently found a .7, and .9 at a drafting store. For pens, it's the Pentel R.S.V.P. A very cheap ball--point pen. I've never been a huge fan of gel inks. By the way, for quality Pentel > Pentech.
I also use a wooden carpenter's pencil from time to time around the house.