There's a law that states that for every action, there is a reaction. A stone tossed in a still pond will cause ever-widening ripples.
As writers we need to apply cause & effect to our craft.
Are our scenes and characters designed for a purpose? Do they serve a point? Is our storyline in need of some tightening so actions aren't meaningless?
For every cause...
..is there an effect?
Look back over your work - see any situations that simply fizzle into nothing? Places where you've started the ball rolling but it gathers moss instead? Pointless points will only disappoint your readers!
In a nutshell - don't build and prime the pump unless you're prepared for water!