AUD/USD touched a low of 0.7492 during the session
It's not just one-way traffic as the dollar is also catching a bit of a bid across the board, but noticeably the aussie is marked lower as a result of the poor retail sales data earlier.
That is the sort of thing that will weigh on Q1 growth, and would not be a good early indicator of economic growth this year as well as pose some concerns - especially now after the RBA moved to be a little more upbeat on the economy in its SoMP on Friday.
As for AUD/USD, as pointed out earlier here, bids are seen at the figure level and below at 0.7480 (yellow dotted line). The next key level of support to look out for after that is the year's low @ 0.7473.