Well I purchased a lumber mill a few years ago and I get logs from a local tree trimmer. I mill the wood and dry it and sell half the wood and keep the rest for myself. the profits from selling the wood pay for more tools and supplies.
I do I.T. sidework and also electronics repair sometimes. That money goes into a separate account and it's where all of my "fun funds" come out of.
I only have one budget so everything comes out of the. I hope to change that at some point ...