provided they don't cause you to violate the 39 melachot or any of the rabbinic extensions of that. https://en.wikipedia.org/wiki/39_Melachot https://en.wikipe

provided they don't cause you to violate the 39 melachot or any of the rabbinic extensions of that. https://en.wikipedia.org/wiki/39_Melachot https://en.wikipedia.org/wiki/39_Melachot It's not hard to violate them though. Carry something in public? nope. Use electricity/fire? No. etc etc