Glass and glass-ceramic bowls and dishes: use for heating or cooking.
Microwave browning dish: Use to brown the exterior of small items such as steaks, chops , or pancakes.
Wax paper: Use as a cover to prevent spattering.
Paper towels and napkin: Use for short term heating and covering. They absorb excess moisture and present spattering. Do not use recycled paper. It might contain metal and can catch fire.
Thermometers: Use only those labeled "microwave safe" and follow all directions. Check the food in several places.
The are however certain materials that have much limitation to be used in microwave, such as Styrofoam plates and cups, plastic storage and food container, and metal utensils.
So metal utensils are not advisable to be used because they can damage the microwave.