Hi, I have been thinking about how to do on holidays as well. And for the summer too. I am going on a two weeks road trip, and can't continue because I can't bring a blender. We don't have tetras here in Sweden (I assume they are readymixed), and we are not allowed bars during the strickt period.
So what I decided to do is to take a holiday from cambridge too, and do good choices when on the trip, and get right back on the plan when I get home.
I am thinking about the summer in general too. There is always more social events then, barbecues, after works, picnics, meeting friends and usually going out to eat or drink something. One one hand I could take my shake before, and explain, but sitting with a sparkling water may not be so exiting.
I do agree that sometimes it is easier just not going on holidays/these occasions. Sure, a bit sad, but this is for such a short period of my life anyway. I am a bit torn! I know it is so much easier to stick to a diet if I don't take breaks.