I replaced all my task methods years ago with just entering slots into my diary. Most are early morning when no one books meetings, if the task requires time to

I replaced all my task methods years ago with just entering slots into my diary. Most are early morning when no one books meetings, if the task requires time to think then I put it during the day, effectively blocking out time so I can get it done. Not perfect for everyone but for me it works. No apps needed.