This is a quick video to show the simple way to get models from Blender 2.8 into your unity Project.
It comes in 3 parts; saving a basic model, saving a model with textures and materials and common problems and how to solve them.
One unfortunate negative I forgot to mentions is that Blender saves backups by default (and those blend1 files just clutter up your project folder) but you can easily switch that off in the Preferences of Blender.
Enjoy.