Best practice to use $? in bash?

When I read this answer about $? another question comes to mind. Is there any best practice for how to use $? in bash? ---- Let's have a example: We have a linear script and I we would like to know that all the command was executed ok. Do you think it is ok to call a small function (let's call it "did_it_work"), to check the error code and break if it's not. #!/bin/bash function did_it_work { code=$1 if [ "$code" -ne "0" ] then echo "Error failure: code $code " exit 1 fi } dir=some/path mkdir -p $dir did_it_work $? cd $dir did_it_work $? run_some_command did_it_work $? This approach of course means that I have to manually solve the problem if there is any and rerun the script. Do you think this is a good idea or is there some other best practice to do this? /Thanks