1. Chamois Butter
2. Polar, the ONLY bottle that doesn't leak, rarely sweats and actually keeps a cold drink cold.
3. You definetly need to buy carbon fiber bottle cages at $45 each. As for me, I just take the el cheapo aluminum cages I find on bikes I flip and use them on my CF Giant OCR-C cause I don't care.
(Hey I resisted giving you a Road Forum response for 2 out of 3, that's not bad.)