I haven't started packing yet -- while my kids have tons of summer clothes, I don't have as many as I would like and I need to wear them between now and then. LOL (My wardrobe is mostly clothes I wear to work, with several pairs of shorts/capris to change into after work in the evenings). And every time I suggest that the girls start laying aside the clothes they want to take, they tell me that they don't want to do that yet. Oh well...DD14 does her own laundry and does her own packing (I'll just give her a list of how many of each item to pack, extras to pack, etc.), and she's good at it so I'm not really worried about her. DD10 is starting to do her own laundry and I'll do the same with her -- give her a list of what/how many of each item to pack and the extras and she'll be responsible for gathering them up. Then I'll check stuff off the list as we pack her suitcase together. DH will do his own packing, and I'll do my own.
I do have a box I've started for the extras I've been picking up -- ponchos, moleskin, band-aids, mini first aid kit, water flavorings, etc., and our water sox (since we'll only need those for the water parks and won't need them before our trip)...
There is just so much to do!