Wish I'd invented it

Arc90 Lab's Readability is a simple and essential tool that "makes reading on the web more enjoyable by removing the clutter around what you're reading."

Just choose your settings, install the bookmarklet in your browser's toolbar, and enjoy content on even the busiest, most poorly-designed sites.

In the past, I've cited Readability as a signpost for designers struggling with IE6.

It's also an invaluable aid to readers who use smart phones.

For instance, here is Roger Ebert's review of...