How to keep all bash history?

Is there a way to keep all bash history without any kind of management? I know HISTFILESIZE is the variable where you can specify the number of bash history records that are kept. But I don't want to go back to my bash history file and check how many history records I've already used up and extend this if I get close to the set limit. I just want to set "keep all history" somewhere and not worry about it ever again?