Ever wondered how much you've actually spent on Steam? A viral Reddit thread revealed how to check your lifetime spending and the shocking totals will make you rethink your game purchases.https://www.notebookcheck.net/How-to-check-how-much-you-ve-spent-on-Steam-games.1001028.0.html
That is not the whole story though. You can buy steam game codes from other e-shops, or humblebundle etc. Steam does not have those data. So this whole article is a bit invalid.