24-Hour Bookclub - Every few months, we pick a book and read it in one day.
Sortd - Rated the #1 App for Gmail
BookKicker - Kicks your book every hour to your telegram
KanbanMail - A Kanban board for your emails.
Four Hour Book Club - 300+ Books recommended on the Tim Ferriss Show 📚
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.