Examples of secure documents to shred:

Personal Information:
Addresses
ATM receipts
Bank account information
Bank statement
Brokerage account information
Canceled & voided checks
Credit & debit card numbers
Credit reports and histories
Drivers’ license numbers
Employee pay stubs
Employment records
Insurance policy data
Investment documents
Medical and dental records
Passport number
Resumes
Social Security number
Telephone number
Tax forms
Travel itineraries
Used airline tickets

Files and Records:
Account records
Audits
Bank statements
Competitive information
Computer records
Contracts
Correspondence
Diligence files
Fax machine ribbons
Financial records
Insurance records
Intellectual property records
Internal memos
Invoices
Legal documents
Market research
Marketing material
Obsolete contracts
Official notices
Payroll records
Personnel files
Phone records
Tax records
Training information
X-rays
Client Data
Business plans
Canceled checks
Computer reports
Credit card numbers
Executive correspondence
New product information
Obsolete collateral
Photographs
Presentations
Price/inventory lists
Proposals and quotes
Proprietary documents
Receipts/invoices
R&D files/data
Planning documents
Price lists
Purchase receipts
Sales forecasts

Non-Document Destruction:
CD-ROMs/CD-Rs/DVDs
Computer Backups
Microfiche
X-Rays
Videotapes
Cassette Tapes
Casino Chips
Product Samples
Prototypes