I've been doing it for close to a year. I basically just have a bunch of text files in a folder. A text file for each day I make an entry. Usually when I think

I've been doing it for close to a year. I basically just have a bunch of text files in a folder. A text file for each day I make an entry. Usually when I think a thought of note, or I'm experiencing a particularly strong emotional response, or just general dilemma running through my mind I'll write down what it is I'm experiencing or thinking. Some days are quite long with multiple entries, some times I go a few days without writing a thing. I've thought about littering my entries with "tags" for easier searching, but I haven't done it yet. I don't really review what I've written very often. Plus the entries don't take long to review whenever I'm in the mood. I use it more as a therapeutic tool, a way to discuss my thoughts with myself. As for an application, I use Writely pro. But any text editor for Android that can open/save text files to a folder will work for what I do. Plain text synchronized across all my devices is the main thing. Future proof, plus it's my data.