I used to get my distributions from Walnut Creek, then bought a few boxed editions of Mandrake and SuSE, for several years subscribed to Linux Journal since the yearly days, occasionally bought Linux magazines with CDs on them, did FSF donations a couple of times, nowadays every time I download Ubuntu I always donate donations.

Likewise on Windows apps that I use regularly like Notepad++, jAlbum, Sublime Text, Paint.NET, Thunderbird, Firefox...