My current setup as of last week is the iPad Pro 12.9 3rd generation with Apple Pencil gen 2 and iPad Mini 5 with the first-generation Apple Pencil (handed down from my former iPad Pro 12.9). This combo works nicely at home, and the Mini 5 is the one which goes places with me around my area or when traveling out of town. On trips I use the iPad Mini 5 and my 12" MacBook. In the past, prior to the Mini 5 I had a 10.5 iPad Pro, which was the one which went on trips either alone or in conjunction with the MB, but I found that it really was redundant much of the time, especially around home.. The smaller iPad mini fits in all my bags, too, which makes it much more transportable. The 12.9 iPad Pro gets the most use at home, either out on my deck in nice weather or just generally around the house. Both devices have cellular data plans, which is useful in the event of power outages or if I am somewhere and there is not good WiFi service. I also have the iPhone XS, which is primarily used as a phone (imagine that!) and also I often shoot photos with it when I see something interesting and don't have a camera with me.