Caveat: Referring to myself as smart money is a bold-faced lie.
And so - I do not spend my emergency funds on investments subject to much volatility (inflation risk excepted, i.e. short term treasuries / CDs).
I keep a cash cushion to cover mandatory expenses to avoid selling when I don't wish to do so.
My cash cushion is not dry powder.
I am not "backing up the truck" but rather buying in increments. Almost a dollar cost averaging approach.
I am currently concentrating more on funds than individual stocks, and with regard to individual stocks, looking for companies with more abilities to due to the propensity of my individual holdings to disappear when I have gambled on small, new, risky companies.