50% off Insync (Google Drive/M$ One Drive Client for Linux) $14.99 USD (~$22 AUD) @ InSync HQ

Time for Insync's annual 50% off for their Prime Subscription (lifetime access). Decent client for syncing Google Drive on Linux. I prefer Google's client on Windows, I don't know if Google supports Mac, but Insync does.
Alternatively, you could buy access for a Microsoft One Drive account instead. Cost is per account.