I don't necessarily spend every week, and sometimes not even every month. I bought and accumulated over a 25 year period, so there's not much in the way of hand tools, or small power tools that I need anymore.
That being said, I usually now save up for the bigger ticket items. This summer, I've bought a sandblast cabinet, and a 32" brake. Pretty soon, I'll buy a new motorcycle table-lift, and at least a 20-ton bearing press. And after the first of the year, I'll buy a small plasma-cutter. Most of the time, I'm also buying material to build other, general shop items.