Subs for GF Baking

We have a couple of milestone birthdays coming up in our family this month and I HAVE to get cake-ready.  My cousin sweetly passed along this helpful chart for baking GF. So helpful! Has anyone had experience with baking substitutions?
Gluten-Free baking substitution chart
Today I was on my own all day so I did leftovers mostly and thank goodness for leftovers when one has no hands to cook.
My lunch
So anyway, in the next few weeks I have a couple of projects underway in honor of said birthdays that I will be putting some time into. More on that later…