There are a ton of companies out there that offer bath and body recipes and ideas. Also at the top of the b and b section , check out the infor and tutorials. Also go to the Fragrance section, there is a list of suppiers there you can just click on and poke around on, you might find calulators and that kind of stuff. Snowdrift Farms is a good starting site. Hope this is helpful, learning to do percentages is a very good way to approach it at this point. Also look in the co-op section once you get situated for co-ops on oils and butters, some of them are awesome for buying a bunch of different oils in smaller amounts.