for #1 - Purse.io. I regularly get a 23% discount on Amazon orders for stuff that I can wait a week on. The other 2 items are very difficult to quantify. Her

for #1 - Purse.io. I regularly get a 23% discount on Amazon orders for stuff that I can wait a week on. The other 2 items are very difficult to quantify. Here's an anecdote from my personal experience: I use Bitcoin to receive a salary for some development work I do every month. Our company pays some of our international developers in Bitcoin because international payments are much easier that way. There is a lot of speculation for sure, but there is genuine real usage.