It's almost snowing here already, heat isn't a problem. In fact I save in heating costs when I let those things heat the apartment.

Yes, around $100 a day. Of course I'm still a bit on the minus side as I just started and bought the hardware, but overall it's working great. That hardware can of course be sold later too if you want money back from it.

I don't use PayPal for anything anyway, when I exchange money and take it out it's wired to my bank account.

Note that this isn't in the US. Also, the electricity in hallway is for everyone to use. Of course, all people in the building have to pay for it too, but it's there for people to use.

I know I'm a little late to the game, but last month I decided to invest in Bitcoin mining. It works pretty well if you join one of the largest pools. You get payments every day. There's no sense to mine alone, but with a pool it works well. CPU mining is a thing in the past too - you need AMD graphics card to do it.

I'm currently profiting around $100 a day, depending on that days exchange rate. My setup is 24x AMD 6990 gfx cards on 8 computers. The overall cost to build them was around $20 000. They don't really have any good processor or other parts yet, but I plan to add those later. I don't have electricity costs as I take it from the hallway. I had to buy UPS and set up an alarm system tho, as sometimes neighbors are just being dicks and take it off, but it's enough to keep it running for ~5 mins and that's enough time for me to put it back in.

So overall I think Bitcoin is great. I make nice cash that I turn pure profit soon, I got good amount of awesome computers and it's an interesting thing to follow. It also made me more interested about Forex and stock trading and other financial stuff, which I think I will move onto when Bitcoin mining gets too hard.