I just sent in my first assignment for school. It was a brief 250 word essay on Ethics for our legal writing professor. Unknowingly, I used the IRAC (Issue, Rule, Application/Analysis, Conclusion) Method, which is common in law school (Thanks Andi for pointing that out!). I think that's just from the motion practice that I do everyday at work & getting red-lined by my boss all the time.
I also did lots of reading over the summer - John Delaney's publications helped me out immensely. I have to give credit where credit is due. At times, it was difficult to get through (I'm still sloushing through his Criminal Law as an Advocacy Book), but I hope it'll be worth it in the fall.