Usually, we highlight fancy photography and tech-heavy art pieces and paintings inspired by technology. You know what? Geeky pleasures can be simple, too.

No frills here — just a window, a dry-erase marker and some nerdy fun.

Dreamed up by Garrett Miller, his window doodles, or windoodles, are the "art of temporary vandalism with dry-erase markers." That's really all there is to say, here — click on into the gallery to see more, and be sure to visit Miller's Tumblr. So simple, but as a concept it definitely rises above the sum of its part.

Windoodles, via Wooster Collective, via Doodlers Anonymous

(Thanks, Anita!)