Struggling with body position?
Try and kiss your mirror. Works every time. (Don't actually kiss it, that's just weird.)
Run out of gas?
Supporting the bike on your leg, lean it over as far as you can and shake it. That will free up any gas trapped in the nooks and crannies. The fuel pickup is on one side, gas might be on the other.
Forget expensive leather cleaners. Unscented baby wipes remove tough messes while moisturizing the hide.
Worn out tire?
Some Shoe Goo might get you home.
Boots soaking wet?
Stuff them with newspaper overnight, it'll draw out the water and prevent odors.
Non removable helmet liner dirty?
Take it in the shower with you and use Johnson's Baby Shampoo to clean it. Leaves no residue and won't irritate your skin.
Kick stand sinking in the mud?
Crush a can or use an old credit card/hotel key card to increase the footprint.
Bugs stuck to your visor?
Soak a paper towel in water and lay it on the visor for five minutes before wiping clean. Doing so re-hydrates the bug carcasses, meaning they'll lift off without scratching your expensive face shield.
What tips do you have to add to the list?