I was just going to suggest that gizmo.
Saw it for the first time this last weekend. Of course I had taken the dryer apart last week to clean it out. :)
Gonna get one, wait! get the second one free, just pay separate shipping and handling.
A few tips/ideas.
If your wife uses fabric softener towelettes, the wax in the softener coats the vents, causing lint to stick. And some lint always get through the screen.
Lint collects in the vent tube/pipe no matter how religious you are about cleaning the lint screen in the dryer.
Clean occasionally.
If you are using flexible, accordion type vent tubing lint collecting is exacerbated. Try to install solid tubing instead.
If the vent tubing runs through an uninsulated space, ie. , crawl space, in the winter the moist air in the tubing will likely condense, causing another point of restriction.
I agree and it also collects behind the drum and in the internal duct over time. Pulling out the drum every five years or so is mandatory (as I found out).