Sorry if this has been asked before but I did not see anything when I was looking. So I am doing the swim around the key west in 2 weeks (first marathon swim), I had a question that since it is hot down in the keys if I should not wear a cap? If I don't wear a cap should I use earplugs? If so what are the best earplugs? Or would you recommend just going without a cap and ear plugs? Also on a sort of unrelated note, I wear my googles really tight (ever since I was 10) and I was thinking of bringing 3 pairs of googles and then alternating googles every 4-6 miles, thoughts?