Hardware more frustrating than an E clip? In my case that would be the piece of hardware Du jour. Any piece of hardware I ever try to use seems to have a pact with the Devil to make my life as complicated as possible.
I recently discovered a life-changing tool known as long reach hose pliers. They all but eliminate frustration with hose removal and can even be made to loosen a spring type clamp in an impossible location.
However, aside from HRL’s suggestion of the modified slip joint pliers, I have yet to come across a tool, or a YouTube video that claims victory over the e-clip.