I recently found out that you can increase your idle btc. What this means is that your current btc can earn you interest! 1% daily to be exact. 

Think about it, you have 100 btc just laying around doing noting. Not earning you anything more. Take it over to https://www.mydailycoin.com/index.php?ref=MrCompEng and invest it! If you have 100 btc to invest you can earn 2btc a day! (They have a 2% interest plan for large amounts)

Try it out!