I'm also running photoshop 7
It still works well for most things.
besides that I also use Krita and Lightzone, both of which are free.
Lightzone is my replacement for lightroom, it's a decent raw converter for *.dng files, has file management, and has a batch converter. It works with a zone based system which is quite different from the photoshop way of doing things (no layers or compositing, or such, it's not really a graphic design software so much as a straight photo editing software).
Krita I just use for noodling about doing photoshop painty & vectory type stuff (I'm still just playing with it still, but it's quite powerful).
I did have the full suite for Adobe and Microsoft products for work for a few years, but after I left I didn't renew the subscription as I simply don't use most of the functionality they offer (I used to use lightzone for large batch conversions even when I had lightroom as I found it crashed less).