Where you spend?
Where you sell BTC ?
Where you buy BTC ?
I only sell BTC when I think it is overvalued or if I'm going to buy something on Amazon through Purse.
I sell BTC through an exchange.
I buy it through the same exchange I sell. I have accounts on multiple exchanges though for speculating and arbitrage.
I have started thinking about shorting Bitcoin when I feel its overvalued, the problem is knowing when it's really overvalued... in November 13, I thought 500 "was it". "This can't hold for longer, it's going to crash". And it went to 1.2K. This November with the 500 rally I thought, well, why should I think it's overvalued? It could perfectly continue going up. Therefore there is no way to know if it's overvalued. What I know is its insanely undervalued long term thats why I just buy and hold.