What useful things I need to take to outer space

1. A source of oxygen

2. Something to control temperature; we humans need a temperature that is neither too hot nor too cold.

3. Protection from sunlight

4. Water

5. Food

the important things are:

1 oxygen carrier, food, water, special suits of astronauts space suit (as it protects astronauts from radiations and maintains the proper temperature of the body) ...

most importantly a packing to keep your output mean waste materials ...