Mark, it's called a shovel!
I've heard so many people say that more harm is done than good, by tilling,
still, I feel the need to prepare the spots I'll be planting things in, so I turn the soil "by hand" (actually, with the help of a shovel) & add whatever soil amendments that are needed. It doesn't hurt to run a little soil test here & there, so you can add what's needed according to what you'll be planting. I don't have a soil test kit, so I take soil samples to our local County Extension office, where they give me a free analysis.
I find that I still need to "spot weed
" as I go, but if there are weed seeds
that have been mashed down over the winter, I know I'm not "feeding" them & giving them a good start too.
...And I only till in areas where a garden hasn't already been established.
Good luck with yours this year. Can't wait to see what come up!