The minimal number of material things necessary for living comfortably day-by-day without money would vary depending on the individual's needs and preferences, but some basic necessities would include:

• Shelter. This could be anything from a tent to a small house, depending on the climate and the individual's needs.
• Food. This could be anything from foraging for wild plants to growing your own food.
• Water. This could be anything from collecting rainwater to finding a natural spring.
• Clothing. This could be anything from hand-me-downs to clothes made from natural materials.
• Fire. This could be used for cooking, warmth, and protection.
• Tools. This could be anything from a knife to a hammer, depending on the individual's needs.
• Transportation. This could be anything from walking to a bicycle, depending on the individual's needs and the distance they need to travel.
• Medical supplies. This could be anything from bandages to antibiotics, depending on the individual's needs.
• Books. This could be anything from a survival guide to a novel, depending on the individual's interests.
• Music. This could be anything from a guitar to a harmonica, depending on the individual's interests.
• Art supplies. This could be anything from pencils to paint, depending on the individual's interests.
• Pet. This could be anything from a dog to a cat, depending on the individual's needs and preferences.

These are just a few of the material things that could be necessary for living comfortably day-by-day without money. The specific needs of each individual will vary, so it is important to consider your own needs and preferences when making a list of the material things that are necessary for you.