You can install nearly-perfect gutter guards.

I've also personally just stopped raking leaves entirely. Where I want some grass in my front yard I'll mulch with my mower which is good for the grass, but otherwise I just leave the leaves alone and it results in a soft, typically non-muddy ground like a forest floor.

I'm not proselytizing this course of action, do as you please. But I think it's nice and something most don't consider.