Maybe volunteer for habitat for humanity and go swing a hammer for a few afternoons and build a house for some underprivileged family???

I also added one other habitat which I am very excited about, but have not started to implement yet...I would like to do it once a day, but I think I will start out with a once-a-week video journal entry!

Spend a day at a Habitat for Humanity building a house.7.  

From talking to locals, there's a couple of issues than need to be addressed, some are the non-ecological practices that some of those developers have, unfortunately, our government profits from this investors and allows them to destroy manglers (which are the natural water purifying system of that area) dismantling hectares of mangroves and degraded the habitat of resident and migratory species burying animals alive.There's proof of fecal material floating beneath the city of Tulum, only 20% of the water is sent to the water treatment plant, there's no infrastructure for the exponential growth.The landfills in the middle of the jungle that is leaking hazardous pollutants into the freshwater system and that something that developers won't tell you.I love my country and it would be a disaster for everybody if this place ends up like some other great beaches around the world, that are completely ruined by greedy investors not following the rules.There's no urban or comprehensive master plan, and one of the risks is that Tulum will be like Playa del Carmen is today, overgrown and with environmental devastation.I will advise doing a lot of research before getting something in Tulum, different country, different rules, and practices.

We rarely lose power and less chance of catching on fire, especially considering we are close to open space/ high plains grassy meadows that are prime fire habitat.

Appreciate all your feedback.The vast, vast majority of properties in Baltimore city, especially city properties cost more to rehab than they are worth, effectively totaling the properties, it’s great that you want to help fix up Baltimore but you’d be better spent working with habitat for humanity or something as opposed to flipping in Baltimore, especially in the cheapest areas.  

If you hired out all the work, you are more likely to get ~$0.50 for each dollar you spent on the ADU assuming 1) in single family zoned area 2) not converted from existing habitat space. 

Go work with Habitat for humanity building houses.  8.  

Other examples include Habitat for Humanity, local veterans organizations, etc.

Here in Colorado Springs and Denver they are called "habitat for humanity" and they get huge slabs from folks renovating.