What do you need the draining insert for? I had one and made it work and tossed it.
Brass channels are okay, but I like stainless because they don’t warp as easily. There are people who have used brass for years and never had a problem so I guess I’m a gorilla. For residential, get an 18, 14, and 12 and that should do 90% of the houses. Get a couple of 18’s to cut down if you have a lot of cutups. I personally don’t recommend starting with a wide body channel, but that’s just me.
Get a couple of microfiber towels. They soak up a ton of water but when they’re damp, they’ll do just as much work as the scrubby pads and I’d even put it up against steel wool.
You might want a tool belt, boab, and towel bag.
Oh, go to walmart and buy the $0.99 can openers. There’s hundreds of uses for those including pulling out screens.
