I like to keep track of information with simple text files, and I'd like to push them back and forth (or synchronize them) with native iOS and macOS software.

Is there an easy way to do this?

Here's an example; I go to the library and on my laptop find many library book call numbers (each on a different tab in a browser).

I glob them together, sort the call numbers in order with Python then paste back into a text file.

**Then I hold my phone up to the screen and photograph it!**

Then I can go to the stacks and check the books without carrying around my laptop.

If there was a printer in the library nearby, I'd print it. If lists like this were shorter, I'd just copy them down by hand.

**Question:** How can I easily, painlessly push text files back and forth between my phone and my laptop?

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[![screen shot of text file](https://i.stack.imgur.com/xlEIM.jpg)](https://i.stack.imgur.com/xlEIM.jpg)