You want to be different and surprise your visitors while training them to behave in a particular way that is important for you.
Have a mechanism for showing popup overlays (or drop down, pull up, etc.) when the visitor has done something you wish to train them to do: stayed for a period of time, read a certain amount, clicked on individual links, etc. These pop-ups should offer something surprising while telling the visitor why, for instance: “You have been reading this article with interest – good! As a gift to you, please download this guide – free and no need to opt in.”
For dirty environments and jobs.
Mass produce cheap conductive gloves that work with capacitive touchscreens
In some situations (putting the bike on the car), it’s useful if the front wheel and handlebar do not move.
Build a locking mechanism into the front wheel and handlebar. It will help when you need to pick up and move the whole bike and also deter thieves.
It’s not easy lifting the bikes on and of the car’s roof top rack.
Have a folding elastic track that can unfold on top of the car’s front and onto the ground. You guide the bike onto the track in front of the car and push it up the car front and onto the roof top rack.
See the history of your movements in the world.
An app that only does two things: regularly register where you are in the world, and show this history on a map.