What should not be kept on a boat to ensure safety and cleanliness?

Keeping cardboard boxes on a boat can pose several issues that affect both safety and cleanliness. Cardboard is not a durable material; it can become soggy when exposed to moisture, which is common on a boat. When wet, it breaks down and can create a mess, contributing to waste and clutter. Additionally, soggy cardboard can harbor mold, pests, and bacteria, which can lead to unsanitary conditions onboard.

In terms of safety, cardboard boxes can also create hazards. They might move around when the boat is in motion or during rough conditions, increasing the risk of tripping or obstructing pathways. It's important to maintain a clean and organized environment on a boat, and bulky items like cardboard boxes detract from that goal.

In contrast, other items such as plastic bags can be managed if they are kept organized and secured, while emergency supplies and cleaning supplies are essential for the effective operation and maintenance of the boat. Having these items properly stored contributes to a safe and efficient sailing experience.