I assume the same way anyone takes a lunch with them. I decide what I want to have for lunch, it's usually leftovers from the fridge, and I stuff it in a tupperware container and throw it in my bag.

I must be misunderstanding the question, because I don't know how this could be something to question. Is the asker someone who goes out to lunch everyday and has never packed a lunch anywhere before?

My ride currently is about 90 minutes one way. Still not sure how that applies to lunch though. Lunch is perfectly happy to travel since it doesn't have to walk, it's getting a free ride so it doesn't care how far.