GIMP is a really great free photoshop alternative for light use: http://www.gimp.org/
I refuse to purchase monthly plans for Adobe software, I'm currently only a Lightroom user, so I'm fine for now, but I see bad things in the future of single payment purchases.
<Av8tor1> as big as peat is, the bear runs not him
Big Boss, Founder, and Major Cheese of the Canadian Association for the Cultivation of Carnivorous Plants... Ask if you want to join, I'm the only member...