Ask HN: What's your catch-all note taker?

I use Microsoft OneNote and it has been working great for dumping all kinds of stuff (screenshots, logs, ideas, thoughts, love letters, resignation letters, resumes, code snippets and etc). That said I use an iPhone, use Linux for work, and Windows at home. So accessing the OneNote when I am not home has been difficult. What is your favorite dumpster(?) app? Do you recommend it? I am open for both free and paid solutions.