If you are really certain that you want to bring some then buy a bunch, but...on our last trip in December, my DS was 16 mos and we had no problem with him even going near the outlets. I honestly didn't pay any attention to see how many outlets were actually out in the open. Since these rooms are very specific in design, it is possible that many of the outlets are hidden either by a couch or end table or night stand, etc.
It's just a personal preference, and if you feel better doing it then by all means do it.
One thing I will recommend to you is to make certain that you relocate the coffee table that contains the Pack n' Play at BCV (don't know if OKW has this). The table is right out in the middle of the living room area and can very easily be run into by an overzealous toddler. It is very easy to move.
Enjoy your trip, and maybe someone else can shed more light on the outlets situation for you.
Brian