I'm glad to hear I'm not the only one experimenting with this!
I enjoy using blends of spells in concert with one another. These help refine the intent of the whole ritual.
For example, a single love spell is good for drawing love - ANY love - your way. If you combine it with a negativity banishment spell, it ensures that the lovers who reveal themselves to you will be positive influences. Then, to finish it all up, you can cast an erotic spell to ensure that sparks will fly in the bedroom.
However, I only cast one spell a day, if I cast any at all, and only on the days and in the hours in which it is most auspicious. I've made projects of spell layering extend over an entire week - the love spell on a Friday, the negativity banishment on a Saturday, and the erotic spell on a Tuesday. Thus, the influence of Venus for love, Saturn for breaking bad habits/dealing with negative energies, and Mars for sex magic makes all three spells meld into one powerful enchantment.
The most spells I've ever layered is five over the span of two weeks. It was very, very potent.