Underworld Priestess
What about herbs and incense for during meditation and such?
Well, chamomile teabags on your third eye can help, i posted something about that a while back ago,
Um, damiana tea or smoking damiana would help,
Also, various various herbs can help, meditation combined with magical showers
Magical showers,
Special bath oils.
or just incense you enchanted
Certain smells might trigger certain psychic memories as well. Quite honestly, try a lot of what you read and wait until you find something that works for you, with such a common practice as this, simply envisioning your third eye growing larger and larger gradually during meditation until it is as big as your head, in your head,
There are a lot of ways to help with your third eye, but the most important rules, are to relax and let it happen, and don't get freaked out by what you see, Try to not doubt yourself, but at the same time you need double check what you sense and it does help if you know what exactly you are trying to sense.
So, again, practice. Meditation, visualization, customization, find something that works for you.