I invest in and rent out luxury vacation homes, like beach condominiums at Pattaya Beach Thailand. In order to do that I needed a property management system, and since I have not programmed since 2005 I use stackoverflow a LOT!! Some incredible advise in here and great examples you can use. So far I solved 99% of my issues by searching/reading on stackoverflow, and only 1% of the cases I have to ask for help :)
If you are a js/mongo/mean guru and you want to visit Pattaya Beach in Thailand, let me know and you can stay for free at my guesthouse (at Wong Amat Beach) in exchange for teaching me some tricks :-)
I always enjoy meeting developers, and thats NOT just because they know how to party!! :-D