Q. Tomorrow Friday one can shave since Lag Baomer is Sunday, is that from the morning or do you have to wait till Chatzos? Can you use new clothing on Friday too?
A. You can shave from the early morning on as it is considered already Likvod Shabbos, but not from the night before (Thursday, Bein Peisach L'Shavuos p. 249). You can also then wear new clothing if this is done Likvod Shabbos, (Hilchos Ktanois 1,33 - ibid.).