In order to make the project more stable and reliable, ESP8266/Arduino programming recommends avoiding String objects to prevent a memory leak. Is there any idea to replace String objects to char *?

I'm soooo close to finishing this program, but I can't remember how to do this. I have read a string from a file because I needed to get it one word at a time, so I used <B>>></B>.<BR><BR>So now how ...

Programming a new microcontroller often takes a longer time due to the new register handling methods and not knowing what bit does exactly what. The same goes for debugging as well without saying.