One of the best ways to enhance Google Ads account performance and save time is Google Ads (AdWords) Scripts, a lightweight automation tool that allows you to interact directly with the Google Ads codebase and control your account using JavaScript code.
It is a lot more powerful than the standard web-based UI but easier to use than the Google Ads API. Among others, Google Ads Scripts can be used to automate repetitive tasks and interact with external data (e.g. weather forecasts, online spreadsheets).