How do you minimize the risk for errors in your work?

To minimize the errors at work you should use the computer in all application. 

For example use financial system for invoices and quotations..etc,  use Excel for calculation,  auto corrected Word for printing 

Then you should review you finial work before submit it

Good Observation and timely Dicession .

on the company level, we are applying a system control to minimize the risl of errors, through a very strong work flow and also a maker and checker humen control. 

On my personal level, the best control is to review my personal duties before submitting my processed output to the nest work flow level. 

Risks are inherent to each activity performed and can be mitigated to an acceptable level with adequate control measures using 4-eyes and Chinese Wall principle to enable cross validation of activity by 2 or more individuals and restricting flow of information to avoid conflicts of interest.

Having said that, the actual residual risk depends on the way the controls have been implemented and their ongoing effectiveness in day to day working.

Risk control is the solution for Risk of errors, as you can not buy insurance for making such mistakes. The solutions would be training on perfection, request of review by the used application or a supervisor, double check by a second person or a coworker as a different opinion will mostly notice different or unusual things. .