I'm an iCal guy, and use it extensively when putting together routes, allowing some fudge time for each stop for hopefully staying ahead of schedule.
I create Google My Maps for each week or set of routes with a layer for each day, and use Google maps to determine drive times if I don't already know them.
While it is superfluous and a waste of paper and ink, I like to print out each day's map and use it to track the day as I'm not a fan of iCal on a smaller screen, though I will refer to it if I feel I'm falling behind.
I like to print at least 1 page of hard copy for each shop, except for a couple of shops that I do monthly that rarely, if ever, have changes to the guidelines. This way I have a place to keep track of notes and receipts.
I place one accordion folder inside another so I have 3 compartments for keeping paperwork organized while on the road.
Front pocket is for current shops, in route order. Middle pocket is for LOAs and blank report forms, in alphabetical order. Back pocket is for completed shops in chronological order, which I file in reverse order* so I can easily access and manage photos on my phone.
I have created a spreadsheet for tracking photos for the Phillips 66 shops so I can blow through those as quickly as possible when necessary, and I might do the same thing for Shell. I currently complete those onsite, allowing 45 minutes, but the flow is usually funky vs. the report, so I might try a different strategy for the one I have scheduled on Wednesday.
*FWIW, I always take Shell pump/infraction photos in reverse order so they show up in numerical order on my phone for filing the report.
Have synthesizers, will travel...