Whenever I need to remember something (oil change, buy something for kids, do something, whatever), I fire up Siri and create a reminder for a specific date/time. I do this for both my personal and work life. This method has been very successful in organizing my life and not letting things fall through the cracks.
When the time comes, iPhone reminds of the task and I go and do it. However, now I have several thousand reminders and it now takes a while for the Reminders app to start. I'd like to delete most of the reminders since they have expired long ago.
However, I see no way to delete Reminders in bulk. I don't see a way to do it on the phone, nor do I see a way to do it in icloud.com.
Am I missing something simple? If not, is there another way to manage reminders?