The "beauty" of eco is that it is an integrated subject, all the ideas link together. So although it is good to have some notes (i.e bullet points on maybe 5 effects of inflation, or 5 benefits of growth etc), it is largely about being able to understand the big picture and the circuititious nature of it. if a happens, b,c and d happen which makes e happen......
In that case, in order to understand the cause and effect i suggest a lot of reading of the financial news, once you see it happening in action it becomes less obscure and much more "natural" in your head (or at least it did for me). Also, copious amounts of practice essays. Aim for about 35 mins so that when you get about an hour in the exam you can really go overboard. The more essays you practice writing, the more adept you become at succinctly stating your point, the more comfortable you get with explaining ideas and the causes/effects/policies that link together. Essays also help for SAQ's which really are just miniaturised versions of essays - if you can write an essay on inflation, you can surely list some causes of it for 4 marks!
I think these boards are also pretty good - ppl are asking good questions, and trying to answer them is good practice.