I like the challenge of the tarot. Geez, it is a complicated system. But when I read the cards, I try to see/feel the story the cards are telling. Still learning it though, so I keep a journal with all the reading I do. Its funny, the other day when I looked through it I saw a pattern emerging (Kinda a theme in my life at the moment i.e work/career etc).
Also, I sometimes use it more to gauge what is going on in my own pshyche. It is almost like an Rocharch test..

...It makes you think and it draws your attention to the important things..Your mind kinda make a connection with the visual images and then it force you to look at the issues head on.
Haven't done readings on other people, just a couple of friends who were willing to be guinea pigs.
Also, when I am not sure I try to dowse on the issue. Quite interesting sometimes what emerge from that.
But as I am feeling now, I will probably take about 4 lifetimes to understand it..

Maybe I should switch to the oracles as well.
BB