I need to purchase some serious meds for our trip in Sept, and want to go to the least expensive drugstore to buy all of them. I still need either childrens Dimeatapp or Triaminic for the plane ride (per dr), Sinus pills, Maylox Max, and Childrens Tylenol or Motrin. I'm sure there's more I'm not thinking of. I wouldn't be opposed to buying store brand, as long as it had the same ingredients and is safe for kids. I have CVS, Walgreens, and the one that used to be Genovese near me. I think there are some others that I can't bring to mind right now. Which one will I spend the least at? TIA!