Another good tip for the reading which works for me in preparing for the TOEFL: Dont bother reading the whole passage before you start answering the questions because of time constraints. I just read the first sentence of each passage to have a general idea of what the passage is about., then start answering the questions. Since each question tells us what paragraph it refers to, we can then read that paragragh to answer the questions. That way I finish the questions with 2 or 3 minutes to spare and I can use that time to review.
For the speaking its important to keep to time even as we are practising , that helps to develop concise answers and one will be able to speak within the alloted time on the test day. Best of luck everyone.