Trade business owners - what's your biggest operational headache?

[Ahmed R]

I'm a software developer looking to understand the real pain points in running a trade business (plumbing, electrical, building, etc).
Not interested in selling anything - genuinely trying to learn what causes you the most stress or costs you the most money operationally.

Is it:
Chasing payments from customers?
Managing subcontractors or staff?
Estimating jobs accurately?
Something else entirely?

What's the one thing that, if solved, would make your business significantly easier to run or more profitable?
Thank you all

 

[Paul Kelly ICHYB]

One hundred different problems for one hundred different business types!

Almost every issue out there is already solvable by products/services already out there.

 

[Ozzy]

already solvable by products/services already out there

Although one could argue that many in isolation, with each solution focused on their own niche.