Create 10 practical tips and techniques for the optimal storage of fresh food in the household that help to extend shelf life and reduce food waste.

Context: [Food storage, Freshness, Shelf life, Refrigerator, Pantry, Storage techniques, Food waste, Hygiene, Freshness indicators, Household organization]

Goal: [Improved freshness and shelf life of fruits, vegetables, dairy products, and meat, prevention of spoilage, sustainable handling of food, practical and immediately applicable storage tips]

For each tip explain:
1) the specific application or storage method with practical advice
2) which foods or food groups the tip is especially suitable for
3) possible sources of error or special considerations in implementation

The tips should:
- be easy to implement in everyday life
- work without special devices or show alternatives
- consider both refrigerator and room temperature storage
- help to measurably reduce food waste
- be suitable for households of different sizes and equipment