L.H.
I am a 25+ year educator, and mom to an 11 year old girl. This is a common thing I am hearing from lots of parents!! Is he in 6th grade, and is that a different type of structure from the last school year? Kids need to learn to be responsible, and 11 is still on the beginning side of this experience. You say your husband is laid back, and your son may have that personality trait as well. Don't send him off to boot camp yet! LOL Try this
1)A checklist for every night which you pack all backpacks and lunches, lay out clothes and shoes, and verbally review what is on the plan for tomorrow. Is there gym, art, band?
2) Get up 10 minutes earlier each day. Go over the check list and lay everything new(lunch) right on top of the backpack and pick out the proper coat.
3) Get him a planner (he may have one) Write a note to the teacher to ask him/her to initial the planner each day to make sure all homework is listed, and materials included in backpack. You sign the planner every night making sure all materials and homework are returned. You must really follow through on it, for it to work, but you will begin building the skills he will need for junior and senior high. Good luck! PM me if you need any more advice.