I've just finished a one-page site for a great start-up called Augary – a fleet management software solution that monitors on-the-road data to improve safety and efficiency. I helped them to hone their message and choose the right images to convey it and add some personality to the mix.
I also used Squarespace's "coverpages" for the first time to create a condensed, off-nav version of Augary's main site, designed for users acquired via an adwords campaign. I can think of so many other fun, creative ways to use this coverpage tool to make my clients look gooooood. They're pretty sexy, as webpages go.
As always, I'm beyond satisfied with Squarespace – their design tools are stellar, and the new Squarespace Seven takes WYSWYG to a whole new level of ease. I couldn't be a bigger fan of them as both a designer and small business owner – they're killing it as usual.