wet clean brass
You asked for wet clean, and simple. Clean is easy. Pretty is more involved.
I've cleaned hundreds of pounds of brass with detergent and water. The stuff, after clean water rinse, comes out squeaky clean, and my hands never looked so good. Color wise, it's a crapshoot. The older the brass, the darker.
I use a gallon pickle jar (plastic) as a shaker/soaker. Ugly or not, the brass works great.
The formula above with vinegar, salt and detergent will lighten dark brass, but no shine. The brass sometimes looks a bit mottled. Add a good dose of lemon juice and the color improves. China Mart has the cheapest lemon juice.
Shiny requires the glycolic acid/citric acid stuff that you get at gun shops, and it is expensive.
All the above require you to allow the brass to dry, or to place it in an oven or as one has suggested, the clothes dryer whenever the wife is gone. To me, this step takes away all advantages of convenience/ease of use.
Nonetheless, whenever I get range brass, a wet cleaning is the first thing I do, then I use tumbling in dry media thereafter. It saves scratching of dies.
bvmr