Lean and lower method
I hung a piece of window screen up to try and get a better pic
When the vine reaches the top, I move the hook to the left while letting out some string. Lean and Lower. By that time, there are no tomatoes down low and I've also clipped off the lower leaves so it's just the vine laying on the ground. I didn't do it last year and haven't seen anyone do it but I might cover the vine that gets laid on the ground with soil/compost mix so it can grow more roots. I had vines over 12 foot long last year so 4-5 foot was on the ground. The goats finally got into the garden last year and stomped all over the plants, else I would have had maters until cold weather stopped the plants. I made the fence taller and stouter with cattle panels this year.
Criss cross string method
I'm about ready to add a third criss crossing string.