Hellotux (a well known family business selling merch for Linux and free software) now supports Interac e-Transfer
From their newsletter
Good news for our Canadian friends!
From now you can pay in Canadian Dollars for your Linux T-shirts, polo shirts, sweatshirts and many more with Interac e-Transfer. And of course we continue accepting cards too.
Check out your favorite Linux distro and free software at www.hellotux.com!
Buying the Debian thong, no way around it.