I put a little USD in my Uphold wallet, and want to send it to GDAX/coinbase wallet, to trade with it.

Do most people just keep their preferred exchanges stocked with USD directly from their bank?

I'm still working out an operational flow for where to be routing USD and BTC to be able to trade when needed, but plan store USD and BTC/altcoin in a web hosted or hardware wallet if possible.

Thanks for the suggestion squatz

I'm still just playing around and testing things, so that when I am more ready to trade, I'll know what I am doing. Any helpful advice would be great!