Duffle is food/iPad/book(s) and accessories that don't really change.
Food: sunflower seeds, beef jerky, a couple soups, sandwich thins, peanut butter
Books: depends
Ipad: at least 1 movie for a DH or commute
Accessories: earbuds, meds (pepto/aspirin/multivitamin), napkins, plastic utensils, pink tags, charging cables

Overnight bag for a 4-day:
Spare tie
Spare set of epaulets
Iphone and iPad chargers
Heart rate monitor
1 full Spare uniform (shirt/pants/boxers/t-shirt/socks)
4 pairs of black socks
5 pairs of boxers (depending on workouts an extra pair is needed based on timing of the day)
4 t-shirts
1 work shirt (2 in summer)
1 pair of work pants
1 pair of jeans
1 casual t-shirt
1 polo shirt (commute home or overnight meal)
1 pair of running shoes
2 pairs of workout socks
2 workout shirts
1 fleece pullover (overnight meal wear)
1 hat
Shave kit with the usual toothbrush/comb/shaving cream/razor/tooth paste/floss/mouthwash/deodorant/contact lense case/glasses in case/contact solution

Commute up in full uniform with jacket to start

Summer will be a swimsuit/ khaki shorts and/or flip flops depending on overnights and no fleece pullover