If I’m rigging my character I need to be sure there is no more changes I need to do. So I’ve made sure my rig is clean, I’ve used 2 helpers to make sure it’s really good. Turbo squid checkmate tool and non-quad. Those made me finds and correct all errors on my model. Check mate tool is a tool that will check your model so that if you have a green light there you can sell your model with a quality mark at turbosquid.com. I’ve made some models there earlier and they only accept the best.