Not sure if this will help you, but I keep just one homescreen page with my most-used apps on it, and I've developed muscle memory for all of them. When I set up a new device, I put the same apps in the same spots. Other than the inherent inaccuracy of touchscreens, I could probably open any of them blindly. I also only fill up the bottom half or so of the screen, so they're all easy enough to reach.