I pack my lunch for Monday-Friday on Sunday night...I usually always have a sandwich, but I have 2 different types of lunch meat and healthy cheese so I alternate..I also alternate the fruits and veggies I put in there.
I put them all in paper bags and label them by the day I am going to take them. They are all stacked neatly in my fridge!
This way, there is NO excuse for me not eating a healthy lunch...I used to do it in the morning, but I am always running late...that's why I do it on Sunday nights!