Can someone eat in the Succah before Sukkot, or could it be a problem of bal tosif? Does it make a difference if it's like, an hour before candle lighting, the morning of erev chag, or a week before? ...
It seems that there exists a Minhag (a practice of the last Lubavitcher Rebbe Zatzal) of adding extra Hadassim or Aravos (Hashanos) — I am uncertain which, maybe both — to the standard 4 ...
Is there anything problematic about eating in a sukkah after building it but before Sukkot starts? Or I guess likewise after Sukkot is over?