Avoid card fees using limit buy orders on gdax (which is coinbase)...heres video
This guys pretty good to watch for investing in btc, but At least save the 3.9% in card fees that he goes over in the video.
Also, jaxx wallet u can send btc with lower priority to save some money on wallet to wallet transfers..
That's not avoiding, that's a workaround.
You're assuming the bitcoin price will always raise after you buy it so that you can cut your losses, while that is a good suggestion it is not always the case in the short term, which is what most people here need.
Regarding the usage of lower transaction fees, good luck with that considering the current market, unless you don't mind waiting at least 48 hours (best case senario) for a transaction to be proccessed...