The free trial is easy. Remembering to cancel is the hard part.

There is a familiar little bargain with free trials: enter payment details now, decide whether the app is useful later. Later arrives during a busy week, and the renewal email gets buried. Some subscriptions are genuinely useful, but several tiny charges can become a surprisingly large monthly bill. What makes a subscription worth keeping for you? Is there a calendar reminder, a spending limit, or a rule about cancelling immediately after signing up? It would be useful to hear a simple approach that does not require downloading another subscription management app.