For me, I send a larger amount of bitcoin, and then I subdivide it into separate currencies so I have a variety of different ways to pay with cheaper transaction fees. Another way is to fill your WebMoney or Skrill wallet.
It also helps to diverse my portfolio.

I never move bitcoin worth less than about $100 it just isn't worth it and many places only support bitcoin so you end up paying a massive % of the total sale in fees. I really hope something is done soon. Especially with Eth since so many tokens rely on it. It makes trading incredibly expensive.