Validation: Implement data validation rules at the point of entry. Ensure that email addresses, dates, and other critical fields are correctly formatted. Standardization: Adopt a standard format for your data. For example, use "YYYY-MM-DD" for dates and ensure all email addresses follow a standard format. Automation: Use automation tools to regularly clean and update your database. These tools can automatically correct common errors and standardize formats. Training: Train your team on the importance of correct data entry and how to avoid common mistakes.