re: How, when (if) has TD/OT benefited you the most? socially, informationally, financially,

I've saved money on several "deals" (primo bbq pit, tiller, paint sprayer) that were posted.

Another thing would be advice, at least one person here has delt with a problem you're having. Brakes on your truck, nosey neighbor, etc...

I also check the OT first when it comes to news. At minimum it's a fantastic headline aggregator of news (both regular and sports). If something is going on, someone has posted it, and it at least alerts you and you can do further research if you're interested.