The only sound way for BTC to have a healthy value is when it is practically adopted and used widely. So if you own BTC, try to use BTC for your transactions instead of fiat.
Whenever I use amazon, I buy an amazon gyft card using bitcoin and at exactly the same time, I buy the same amount of bitcoin from coinbase. I miss out on the 1% cash back from Discover, and may lose a percent on the bitcoin conversion (this part is variable), but usually come out ahead with the 3% in rewards points that gyft gives me.
Gyft cards come in increments of $5 so if I have, let's say, a $102 purchase on amazon, I'll buy a $100 card at gift and charge the remaining $2 to my credit card.
Sounds like a lot of work. Amazon branded credit card gives you 3% points on all Amazon purchases. Points where you are most likely to use them rather than on more fancy gyft cards. Pay off credit card each month. Bam, done.