A mossy silk velvet robe by Toast (or a handmade one in the color of your choice, a steal at $120).
Handmade soap that doubles as a still life, by Orient 499.
A steamy book by that can be read through in one soaking. (It would be genius if a smart publisher out there would make a series of bath-time books: engrossing works that can be read in half an hour or 45 minutes.)
An aryballos of F. Miller face oil for post-bath anointing.
Chocolates to savor, one at a time, by Deux Cranes and Dandelion (or Deux Crane's flavored caramels, for non-chocolate people).
Glimmering silver goblets by Tse Tse to keep a glass of something close at hand.
Wax Apple wooden massage tools for getting the knots out.
Sylvain le Hen hairpin at Rennes for easy twists.
A dry brush to activate the ol' nerves, and a trio of Susanne Kaufmann bath potions (or one tiny bottle) to soothe them.
Thick and plushy organic cotton checker towels from Baina.
Michele Varian's silver chestnut trinket box, for stashing precious jewels that should not get soapy.
The plushest, cruelty-free alpaca slippers at Conifer, for kicking your feet up.