Everyone I know tells me it's hard to shop for me as I make everything I want, so I thought I'd share a list of things you could buy for the bath & body crafter in your world.

I wrote about this topic a few years ago, and thought I'd update it for 2017. Please note I provide the links to online shops as a courtesy. None of these are affiliate links and I receive nothing if you click through and buy anything. 

Heating and holding and melting solids slowly is easiest in a double boiler, and I've been using this Rival Fondue Pot as my double boiler for more than 11 years now. My favourite feature is the dial that allows me to choose my temperature, so I can boil the heck of something, then turn it down before the water starts jumping out of the pot.
I can fit two 1 litre beakers or two 500 ml Pyrex jugs in it, which is more than enough for my needs in my workshop.

Canadian Amazon link
Canadian Walmart link
American Target link for the Oster fondue pot

A tiny scale that weighs to 0.1 grams or 0.01 grams. I've used a Salter diet scale from London Drugs for years, but the last few I've had were ruined during classes when someone poured melted butters or waxes on them. I've moved to this little scale, Smart Weigh ZIP300 Ultra Slim Digital Pocket Scale with Counting Feature, 300 by 0.01g, which I found on Amazon for $18.99.

You could also go into a hydroponic or head shop and get a very accurate scale there!

I think pH meters are essential pieces of equipment...