Did several trip just me, DD and youngest DS to and from the gettsyburg pa area to foxboro ma last summer to visit DH while he was on the job there (got my van june 08 and it now has a little over 26K miles

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Here are things that I learned during the various trips
-Stop every 2 1/2 - 3 hours maximum while the kids are awake. That seemed to be the magic "I got to go" time frame for DD
-Carry a container(s) with lids for emergency bathroom stops or car sickness. I used the plastic buckets that we get ice cream in. Stuck in backup from a car accident for hours on one trip.
-Have plenty of snack and drinks with closable lids (flip tops work the best) within easy reaching distance. One less stop to retrieve something
-Make sure you pack the van with the seats that the kids will be using in the reclined position.
-If possible do not sit anyone directly next to someone else. Fill up that spot with something else. they can be within arm reach to pass stuff back and forth but not touching each other.
-Pack garbage bags, paper towels, wet ones,and sometype of air freshner in case someone does get sick. You can bag up all the soiled stuff and spray to eliminate the odor as much as possible
-make sure all toys have new batteries, that you have extra batteries, or that you have the chargers for the toys
If I think of anything else I will repost it.
Happy traveling!!!