I tend to buy some boring stocks that recently dropped. Recently I picked COSTCO, around august (but would be fine if i did july as well). It dropped very hard after amazon - whole foods deal. I thought Costco was a good bet. got in. doubled about 40->80K. planning to sell some after another 4-5% gain on the stock price, maybe.
Got into SHOP after the drop, but didn’t know a lot about the company, quit.
Got into NVDA to catch momentum, I might have tripled some solid amount.
Got into FB doubled some.
Granted, all of this was possible because of ever rising market. I am cautious though, tend to find drops before going in, and not putting all eggs into same basket. Also leave some amount of cash. At some point, i will buy a sunnyvale house with it, i already have enough (for 2 down payments)