First one was scalping, then there was hedging, swing trades based on trends and avoiding shilled/hyped cryptos. In general I tend to avoid news trading as from what I've seen in cryptos almost always leading up a big dip. Maybe that's just because the exchange I`m using is not that big, but yeah. Once there is some kind of news regarding a certain crypto - there is a bit of hype (price rise) before the release date and there is almost always a big drop off once the release is made.
Recent example: Lisk. Before the relaunch event it was ~30$. The day after the release it dropped to ~$25 and now is gravitating around 23.
Another kind of tactic that's been quite useful is the averaging out -
example: buy 1 coin at 30. Price drops to 20. Buy the same (or double) amount as the initial purchase.
Now have 2 coins at 30 and 20 = joint average 25$/coin.
This is risky but in my case once I've been keeping an eye on the trend and market movements I can make a fairly educated decision if I should just hold and wait or buy the dip and then wait.
Last but not least - watch the other traders and transactions (i believe that's called social trading). If I see automated trades and big order walls I tend to keep an eye on them to see what their goal is and when they are active. This allows me to sometimes predict price pushes (pump&dump) and profit from them.