One of my favorite Internet marketplaces is eBay. You can find stuff at great prices that you can't find anywhere else, and many sellers on eBay will ship to Hawaii using USPS Priority Mail or Parcel Post. So if you save $20 on that fantastic trendy top that can't even be found in Hawaii, and spend $5 for shipping, you still come out $15 ahead. I haven't figured out a way for you to view only sellers that ship USPS with no markup, but eBay will generally let you punch in your zip code and then eBay will provide shipping costs next to the current cost of the item. USPS shipping costs will generally be in the single digits for most items, but regardless of method of shipping, if the total price is right, buy it.
- Buy from sellers with a lot of positive feedback.
- Avoid sellers that cram profit into shipping costs. Some sellers will only ship via UPS or Fedex and will include a markup on top of that.
- Buying large and heavy items from the mainland generally doesn't make economic sense.