What are best practices to avoid 'Run-time error 381' in general VBA programming?

Best practices to avoid 'Run-time error 381' include: using explicit variable declarations (`Option Explicit`), carefully naming variables and objects to avoid confusion, using the VBA debugger (F8) to step through code and inspect values, validating input and data before processing, checking object existence and types before attempting to use them, and referring to official Microsoft documentation or VBA Object Browser for correct property and method names and their valid data types. Thorough testing of your code is also crucial.