In the past: Sear's & Roebuck's, Crutchfield, there was another A/V catalogue that was something like J&R back in the 70's & 80's. Then came the Car ones like Summit in the 80's & 90's.... then I came across Dennis Kirk for motorcycles.... And then MSC, Grainger and one other that the name escapes me.... Every now and then a Uline shows up and of course the Northern tool and Harbor freight too.
It gives me hope in January/February when there is 2 feet of snow on the ground. Then I also buy things that "sound good/different/novel/tasty" and don't know where I will plant all these different things! But I have found some keepers when I do that. Not everything, but enough to convince me to try a couple new things a year.