Greetings from northern AB! Great thread Jor. I’ve got a couple of cures for which a malady already exists in the contributions so far, but they are both really effective.
1) Alleviate Muscle Cramps: Keep a small ziplock freezer bag of regular yellow mustard packets in your backpack or fannie pack, inside another small ziplock freezer bag. If you’re getting muscle cramps or charlie horses, suck back the contents of a few of the mustard packets, and slide the used ones into the outer ziplock bag for disposal when it’s convenient, instead of littering. Wildland firefighters often carry mustard packets for dealing with cramps due to the extreme physical demands of operating hand tools for hours on end.

2) Stop Hiccups:
Continuously and without breathing through your nose even once during the exercise or stopping to catch your breath between swallows, take small sips of water or any beverage until you are absolutely forced to take a breath again. Your brain becomes so convinced that you are drowning (like when you are being waterboarded but in a less traumatic way) that  your first breath will be extremely deep and stop the hiccup impulse. I learned this one as a variation on the “drinking water from a sports bottle while bending over with your forehead facing the earth” method about ten years ago and it has never failed to stop hiccups.