OFF TOPIC
I believe I can quickly dispel at least part of your thinking by mentioning the dinners each night in our rental apartment. They were made using spices and herbs brought from home and were of course perfectly paired with a different wine each evening. Our best meal of the trip was king crab legs sautéed in a light sauce of shallots, white wine and butter, a recipe passed along to me by my aunt, and paired with a Meursault.
I have a feeling your backpacking trip isn't going to offer such luxury. Another way of putting it is that though we may wear the same brand of underwear when traveling, I'm sure I'm more of a wimp.