My approach is anti-completionist. I actively avoid seeing the 'full' list. I'll look at last year's list, pick one book that intrigues me, and read it. Then maybe next year, I'll look at a list from five years ago. Treating it as a monolithic checklist feels like homework. Treating it as a periodic source of one good recommendation feels like a gift from a well-read friend. Keep it casual.
I use a simple Google Sheet. Column A is the year, Column B is the title, Column C is the author, Column D is a checkbox for 'Read,' and Column E is for my rating. I add to it slowly whenever I encounter a title from any year. It's not pre-populated, but building it manually forces me to engage with each entry.
Think of it as a marathon, not a sprint. The historical rankings reward endurance. A novel might debut at #1 and sell two million copies in three months, but if it falls off the list after 20 weeks, it gets outranked by a middle-grade novel that stays in the lower ranks for 300 weeks from steady backlist sales. That's why children's books and perennial self-help guides often climb so high on the cumulative lists.