Paying bills isn't as much fun as sending out invoices, but it has to be done. You may already be managing this task through your bank's website, which may or may not excel at this service. There are few other options online for standalone bill-pay, and the ones that exist have restrictions. Bill.com rules when it comes to supporting both invoices and bills; you'll be charged $29 per user per month for payables automation only. If that's more than you want to pay, you could subscribe to Wave, which is free, and just use its bill-paying tools.
There are various tools that help software teams build and execute automated tests. Many teams are actively using unit tests as part of their development efforts to verify critical parts of their projects such as libraries, models and methods. Historically, testing user interfaces of desktop-based applications via automated tests have been more challenging, and currently available tools for this are usually commercial and quite expensive.
Selenium is possibly the most popular open-source test automation framework for Web applications. Being originated in the 2000s and evolved over a decade, Selenium has been an automation framework of choice for Web automation testers, especially for those who possess advanced programming and scripting skills. Selenium has become a core framework for other open-source test automation tools such as Katalon Studio, Watir, Protractor, and Robot Framework.