Excellent post!
+1. This is one of my favorite actions and incredibly useful once you wrap your brain around it. I only recently starting using For Each to reduce the clutter I'd written into my macros. I use Excel a lot for work, and combining For Each and Repeat lets me move both horizontally and vertically through a sheet in just a few actions. ie:
I only recently starting using this, as well, but I prefer to use it on Control+Space. I Spotlight everything I can, so I use Control+Space for Insert Action By Name, Option+Space for
MACRO: [KMFAM] Favorite Actions and Macros by @DanThomas, and Command+Space is of course Spotlight.
I use this to Call Insert Action By Name, because I try to avoid remapping default hotkeys when possible.
