Who uses plug trays?

[Rajun Gardener]

And what size do you use for tomatoes and peppers?

I'm trying a 392 tray for peppers, I didn't use every cell instead I planted every other cell and skipped a row then offset that row to give room for the plant to get light and air circulation.

After looking online I think I can use a 98 cell tray with a little more soil to grow plants a little bigger before transplanting.