Firebase is a fantastically handy realtime database, in which you store your data in JSON format, this tutorial aims to provide a very simple example todo app which you can easily extend upon to build something amazing in realtime.
Some ramblings about code.
By default, WooCommerce shows the shipping price during checkout even when free shipping is available.
I had an idea for (semi) redundancy for one of our larger projects - an E-commerce store running on a WordPress installation.
It can often be handy to disable the browser context menu (the menu that pops up when you right click) on your website, partiularly if you have images that you would prefer no-one copies without consent.
When using product variations in WooCommerce, you have the option of adding a description for a single variation. However some themes do not show this by default.