Placing a bunch of strategically thought limit orders before going to bed do wonders. I love the smell of closed limit orders in the morning.
yeah, I don't have access to that sort of fancy pants exchange any more, since Kraken abruptly dropped my jurisdiction...I get to execute real time market orders, that's it.

Bitshares, one of the decentralized p2p exchanges, allows you to place limit orders. Of course, you'd have to trust USD-Tether or bitUSD or whichever fiat system you use. I've experimented with the system with small quantities and it seems to be working all right so far.
There's also Bitsquare (which I have not used) or Ripple's desktop gateway.