A collection of small but high-leverage programming tricks spanning shell history search (fzf, atuin), SQL tips like SELECT without FROM and EXPLAIN ANALYZE, regex word boundaries, JavaScript modern APIs (flatMap, Object.entries, Promise.withResolvers), Node.js HTTP connection pooling, git pickaxe search, ripgrep over grep, and zsh autocompletion setup. The post also advocates for senior engineers to share one trick per day with their team on Slack, arguing that accumulated small knowledge nuggets drive significant engineering productivity.