It's awesome to trade bitcoins for actual goods and services(like your own way of earning btc).But most of the regular services we receive daily will have the service providers come to terms with bitcoin in good time. Investing some of your earnings form the products you sell is not a bad idea too; You'll get some extra profit and you'll be able to expand your business horizons.  

I purchase from my local exchanges when I need to buy bitcoin and I don't usually keep holding it I trade my bitcoin against altcoins from time to time to increase my stack of bitcoin.

I participate in partnerships, investments and generosity, as well as tenders. Somewhere I hold, but somewhere I sell. All according to the situation. I'm not into gambling, not mine.

some people do mining and trading. those are most profitable then earning. or you can do some signature bounty.

There are lot ways to earn bitcoin some in buying and investment. I got my bitcoin in joining some signature campaign and also by trading.

Peples buy bitcoins for cash in online and offline exchanges.
I am collect it from bounties.
Some guys earn from scamming

There are lot of ways which through people get bitcoin such as from Bounty,Trading,Selling product just like you and also from Gambling etc.

but, especially i get bitcoin from doing Bounty and by Trading.

there are many ways to get bitcoin and what I do now is very amazing that is by following a project that is in bounty bitcointalk sepeti follow twitter campaign telegram facebook articles and also signatures after finished then they pay me in Bitcoin or cryptocurrency which then I convert to Bitcoin.

There are many ways to get bitcoins.. Personally i get bitcoins by doing bounty/signature campaigns.. And sometimes i exchange my ethereum and other coins to bitcoin.. Its most easiest process for me to get bitcoins.. Sometimes i sell my online products through bitcoin payment.. By mining and trading you can earn bitcoin also .