tricks of the trade
Clever ways of operating a business or performing a task or activity, especially slightly dishonest or unfair ones. For example, Alma knows all the tricks of the trade, cutting the fabric as close as possible, or The butcher weighs meat after it's wrapped; charging for the packaging is one of the tricks of the trade.
Words nearby tricks of the trade
trickle charger,
trickle irrigation,
trickle-down,
trickle-down theory,
trickle-up,
tricks of the trade,
tricksome,
trickster,
tricksy,
tricktrack,
tricky