"What you have matters more than what you lack (If you’ve got a bicycle,
consider what you can build based on that, rather than worrying about
not having a car, a truck, a metal shop.)" (Link
Although there were a lot of good 'secrets' found on the website, I find this one my favorite as I've experienced it first hand.
I was born in a third world country, where everything counts. I remember my mother keeping all the pen caps so she could still use it as pencil extenders. Imagine this, a super small pencil (one would just throw away), and a pen cap/cover attached to the end of it, so the pencil could still be used in the future. When there really is no more hope for this pencil, then we still use the pen cap for other short pencils. She told me how life was really hard when she was growing up and that being resourceful and recycling is the way to go. Not only would it save money, but it also saves the environment from non-biodegradable waste. I'm fortunate that those small habits shown by my mother has been instilled in me. May it not be through these pen caps/covers extenders (I use mechanical pencil, I've been using it for many years now), but just the idea of recycling and being resourceful in my small way would produce an impact in the future.
I am currently studying as an engineer and I now see how innovating is a very important concept.