Apples in a lunchbox never seemed practical to me. They turn brown cut up and are no fun to eat whole. While it sounds really lazy... ok, it is really lazy... I hate to use and wash my apple cutter
Recently I've started soaking the slices in a mixture of water and lemon juice and it's changed my whole outlook. I buy a 2 pound bag of apples. I spray them with a mixture of 1/2 white vinegar and half water kept in a spray bottle at my sink, rub them around a bit and then rinse. Then I cut the whole batch with an apple cutter
If I also make a dip the apples don't last near five days in the fridge before disappearing.
Peanut Butter Yogurt Dip
1/2 cup whole milk unsweetened yogurt
1/4 cup natural peanut butter
1/2 tsp cinnamon
1 tsp honey
Mix all the ingredients and serve cold with apples, celery or pretzels. My kids dip carrots in it too, but I think that's taking it one step too far. Eww.