Describe 10 practical strategies that employees can use to successfully prepare and conduct their salary negotiations in order to achieve a fair and convincing salary increase.

Context: [salary negotiation, work, career, negotiation techniques, communication, self-confidence]

Goal: [achieve higher salary, improve negotiation skills, gain self-confidence, increase professional appreciation]

For each strategy explain:
1) a concrete approach or technique for preparing or conducting the salary negotiation
2) practical tips for implementation during the conversation and handling objections
3) the expected positive effect on the negotiation outcome and personal position

The strategies should:
- be easy to understand and directly applicable
- be suitable for various professional fields and experience levels
- help to confidently master negotiation situations
- strengthen self-confidence and persuasiveness