Alaska vs Caribbean packing list — the differences nobody tells you about

I have now done 4 Caribbean cruises and 2 Alaska sailings and the packing differences between the two are more significant than I expected going into my first Alaska trip. Sharing what I learned so others do not make my mistakes. For Caribbean: - Light clothing dominates — linens, moisture-wicking fabrics, breathable everything - Multiple swimsuits that actually dry between wearings (bring at least 3) - Reef-safe sunscreen in serious quantities - Waterproof sandals for port days - A light cardi…