FastRemind is an easy way to create reminders in seconds. It is always accessible right from the menu bar, where you only have to type what and when you want to be reminded in natural language. FastRemind will understand at what time you want to set the reminder and adds it to your existing Apple Reminders, which syncs to all your other devices.

Type for example "Do laundry tomorrow 10 am" and it will create a reminder "Do laundry" for tomorrow at 10 am.
You can also type things like "Call mom in 10 min" or "Buy water in 5 days".