I've heard of people doing hour-long rituals full of all sorts of complicated stuff like Opening by Watchtower, multiple lengthy invocations, using a substantial arsenal of paraphernalia in dramatic fashion, even running around the altar like a madman screaming gibberish. While I have nothing against that if these things make sense in the working itself and are used properly, that doesn't guarantee such a ritual will have the desired effect. By desired effect I mean the forces set into motion manifesting the magician's intent to its fullest, whether for practical or mystical purposes.
I recently received a short and simple ritual from una ragazza molto speciale, specifically crafted by her for working towards what in Jungian terms are referred to as the Anima and Animus. The operant is to encounter an avatar of their Anima/Animus and ask for whatever it has to offer them, ending by recognizing him or herself as being one with their Anima/Animus.