Eat yer heart out, Flowbee.
We have done home haircuts for decades over here.
Fast, cheap, and after the first few rounds, pretty good.
This is what we use:
We use oil on the blades every single time. It makes a big difference especially for blade life. Recurring expenses are just the bottles of oil and new blades.
I use this on our crosscut shredder as well. Metal blades are metal blades.