Databases are used across many industries and applications to organize data. They are used in banking to store customer information, in airlines to store passenger details for booking and check-in, and in education to keep track of student records, grades, and transcripts. Other common uses of databases mentioned include sales and customer management, finance and accounting, telecommunications for call records and billing, and general business applications like inventory, ordering, and payroll. Households also use databases for tasks like tracking family birthdays, bills, expenses, and contact information.