I noticed alot of this on our last cruise as well and was wondering how to combat it. One question though - what do you do if you are travelling in a group and you get to the pool deck ahead of your party - wait until everyone is there before grabbing a table and chairs or take a table and wait for your party? I saw people do both and was just curious. I found that if you scoped out long enough you could get a table and chairs just by watching - also if there are only towels and no personal items on the chairs then how do you know if the people are even there anymore???