You can do what you deem fit for yourself. Others are free to do what they prefer. Anyway the account dun go negative, ie no fees if kept at $0.
may not be the same accounts but my scb xtrasaver account went negative once.
i always leave my xtrasaver account (cheque acct) at zero and only transfer when i need to issue a cheque,
there was once i issued a cheque and transferred the money only from my esaver after midnight that day as i forgot about it and was charged a fee of $100+
my xtrasaver became negative then
