Thoughts on creating aliases for yourself? Good practice or Bad practice?

Hey guys,

Do you guys think it is a good or bad practice to create your "own" commands to make your job easier?

For example... Say you are working with firewall-cmd a lot. And you get tired of its syntax.. You're doing some troubleshooting and For example you are running

firewall-cmd --reload 

many times to test stuff.

Would you go ahead and make a very short alias to make your job easier?

For example something like:

fw r 

Is this a good idea? Why or why not? In what cases will it matter? In what cases will it not?

Thanks.