Essential Oils & Leather

Leather is a great for diffusion and it's super easy!
You simply place a drop or 2 of your favorite oil or oil blend on the back of the leather and wear as normal.  When using oils in this way, you will catch a whiff every now and then, but if you need some  serious intervention, just sniff wherever you applied the oil.    
This works great on bracelets, necklaces and key chains. (Although sniffing your keys for serious intervention might make you look a bit weird) 
Diffusing oils this way allows you to use less oil throughout the day compared to skin application & no need to worry about a carrier oil. 
A note of caution:

The oil will over time add to the patina of the leather on the front, so if you want a super clean looking piece this method is not for you.