this might sound strange but in the summer we tend to sweat while riding because of the heat etc. fluids along with salts are lost through sweating, and there goes your potassium. ever wonder why they offer a banana and a bottle of water at each checkpoint at the baja 1000? that being said, bananas are impractical to pack with you to replenish the potassium. that's why i keep a bottle of potassium gluconate in my pocket. you know how when you ride for hours you can get a bad case of polio fingers, or cramped calves, etc? it's usually from losing that potassium. one tab of the potassium gluconate, a minute later and you can forget about the polio fingers.
another thing i use when travelling and don't want to stop to pee every hour or so, is to get a small baggie of coffee beans to munch on while riding. the caffein seems to zoom me up without making me have to find a tree to pee behind. the cheapest way to get a good sheepskin cover is to go to pep boys or auto zone and get an automobile sheepskin seat cover for a bucket seat. you can cut it to size and it'll cost you around 39 bucks. find the thickest one for more padding though. one more thing i learned years ago was to change speed every hour or so. if i set the cruise at 78, then i'll run at that speed for an hour or so, and then change back to 68-70 for a half hour. the difference in rpm's, stress, etc, seems to be a welcome change. now if you plan on riding at night, the safest time to ride is during the dark of the moon. the reason being because the animals that are nocturnal and are out foraging for food stay home, they can't see as well at night without a moon. other than that, like they said in blazing saddles, "son, you're on your own"