Many reputable companies won't ask for a ridiculous clause, and you might choose to work for them, instead. For example, all of the IBM employee paperwork I sig

Many reputable companies won't ask for a ridiculous clause, and you might choose to work for them, instead. For example, all of the IBM employee paperwork I signed (after selling them a startup) had notices of where California law gave me additional rights compared to the rest of the country -- and of course, no non-compete. I quit 3 weeks later, no hassle at all.