Are there well-solved and simple storage patterns for Solidity?

Here are some simple and useful patterns in increasing order of utility. Event logs are omitted for brevity. In practice, it's desirable to emit events for every important state change. Simple List Using Array Strengths Reliably chronological order Provides a count Random access by Row Number (not Id) Weaknesses No random access by Id No assurance of uniqueness No check for duplicates Uncontrolled