Multi-Tasking in the Tub: Reclaimed Wood Bathtub Caddy

We're posting about this specific tub caddy in part because we think it's lovely but also to raise a question — what, if anything, have you rigged to set up shop in the tub?

This tub caddy, which is finished with water-resistant tung oil, is available from Etsy seller PegandAwl. The wood comes from an old hardware store in Lancaster County, Pennsylvania and the caddy includes holes for two votive candles.

Most of you probably won't want to spend $100 to essentially set up a desk in your tub. If that's the case, what DIY or more affordable retail solutions have you employed as a surface in your tub?