and what are the best herbs plus other ingredients too add in your own bath oils,salts etc?anyone who here loves aromatherapy as much as i do and has some knowledge on the subject can you please give me some good pointers?i also plan on building up a stock of goodies in my room (that have fragrance) that's inviting,invigorating and uplifting.oh and can i use them scented candles that are cheap?instead of the actual expensive aromatherapy ones?