I'm wondering if there's a better way of handling the transaction fee limit. As I understand it at the moment, it's basically a gamble. You wager an amount. If it is too low, you lose it all when it gets rejected and returned. Set it too high and you waste money on faster processing you didn't want.
How can I set a sensible amount? Must I rely on online calculators to make the guess for me?
I sent 0.01 Eth with a 0.0003 fee, and it's been stuck for days, I'm guessing insufficient fee and thus rejected.