Joanne,
Like you we have the micro under the stove which eliminates the cutlery drawers. Not very experienced with the 19 yet, but after two trips we're getting some ideas and some things are starting to find a home.
The little cubby under the fridge we are using for toilet paper, toilet chems, etc. since it is convenient to the bathroom.
Our pantry so far is seeming to land in the passenger side overhead bin above the dinette. Just seems to be a real natural location for the dry food items.
The pots under the sink, and the cubbies at the base of the kitchen for zip bags, trash bags, extra plastic utensils, etc.
The two mods that I know are in my near future are that I want to build or find some type of sliding drawer insert with at least two drawers to go on the right side under the sink. These will be the cutlery drawers when I solve this.
Under bed build out. Need more time camping in the trailer, but we'll custom out the under bed storage ultimately, just don't know how yet.
I did add two 3M command hooks ($4 at Wally) to the interior fiberglass wall of the shower behind the curtain for hanging 2 towels. They worked out great and location was perfect.
Also bought a 3M command round bathroom mirror, but can't decide yet quite where it will end up in there. Somewhere over the sink. Will be adding toothbrush and soap holder in there as well.
All I can share at this point as we're still newbies to the 19.