What's a good Android app for scheduling appointments and sending reminders to my clients, so I don't have to chase them down all the time?

Look, as a small business owner, my time is money. Google Calendar has been a lifesaver for scheduling client meetings and sending out reminders. Before, I was wasting at least an hour a day just playing phone tag. Now, clients get automatic reminders, and I'm not constantly on their case. The integration with Gmail is seamless – appointments get added directly from emails. I can share my calendar with my assistant, which streamlines the workflow. It's also great for tracking invoice due dates and setting reminders to follow up. Bottom line: Google Calendar has significantly improved my efficiency, and the ROI is solid. It's worth every penny (even though it's free!). I’d recommend this app to any small business owner looking to get organized and save time.