ScottE wrote in post #2211346
If you don't know what lens you need, don't buy any.
It sounds sensible, theoretically, but sometimes you need to try things to learn and to know what you want or would like to do.
I do not think that our mind works in such a logic and linear manner, at least for all of us. Just by playing with what we already have may not necessarily create by itself a new need or project, not to mention our desire for new toys...
I would say that if you already have the kit lens, I suggest you may add for example a nice telephoto prime, like the 85 f1.8, a great and relatively inexpensive lens. It will allow you to try different things than the kit lens alone, like the effect on your pictures of a shallow DOF, shooting in low light situations, etc.
A good flash of course, like the 580EX or 430EX would be handy as well, and will allow you to further explore and experiment.