Auditing Lower Level Classes Before Transfer?

<p>I am a community college student and am looking to eventually transfer to a 4-year university. I have been noticing that a lot of Universities discourage the application of transfer students over a certain number of credits (which makes sense, I understand it). My question is: would it be a good idea to audit (i.e. take a class without getting credit for it, and making it non-transferable) courses that are lower-level courses to the ones I would need to transfer. </p>

<p>Example:
I have been placed into "Calculus I" based on my test scores, however, I have taken three years off since high school and haven't really been keeping up on my Calculus, so instead, I am planning on taking "College Algebra and Trigonometry" as a refresher course to make sure I am ready for Calculus, instead of taking it straight away and realizing I should have started out at a lower level. My idea in this case would be to Audit "College Algebra and Trigonometry" and then take Calculus I, II, III, etc. for credit to transfer. That way, four credits of my "transfer credit limit" would be free (not taken up by the College Algebra and Trigonometry class). I would also consider doing this for classes like "Introductory Chemistry" before taking "General Chemistry I" (again, another subject I haven't really kept up on), or other classes below the level of those I would want to transfer.</p>

<p>Would this be a smart idea or is there an alternative solution?</p>