Since everyone is recommending note apps, I'll throw a plug in for Bear, if you have a MBP and an iPhone. Syncs via iCloud, and it's just simple, Markdown orien

Since everyone is recommending note apps, I'll throw a plug in for Bear, if you have a MBP and an iPhone. Syncs via iCloud, and it's just simple, Markdown oriented notes with a simple tagging system. Good enough search. Haven't really needed anything else and it actually exports pretty nicely to various formats (Word, pdf, html, etc.).