> the random timeframe in which the (still unnecessary) credit is free
Are you talking about the 0% APR period, or the monthly revolving cycle? The latter is absolutely predictable, and if you dislike manual payments you can always set up automatic ones.
Are you talking about the 0% APR period, or the monthly revolving cycle? The latter is absolutely predictable, and if you dislike manual payments you can always set up automatic ones.