AppSumo arranges good deals on software and services on an approximately monthly rhythm, often ±$40 for a lifetime access to a ±$100/year service, or similar good deals.
And they tend to select really great products/services.
I advise you to check it out, I’m using the following via their deals:
- a life-time Brain.fm binaural beats enhancing my work daily,
- TubeBuddy,
- Webinar Ninja