I just checked my photos and unfortunately cannot find a pic of this, but I had cedar plywood left over from making shelves in my closet. I cut and sanded this to fit the silverware drawer top when pulled out of its recess. I then measured where little rubber "bumpers" should go to sit just inside the edges of the silverware drawer and screwed them in (4) to the bottom of the cedar ply. The "bumpers" (picked up at HD) allow the cedar ply to sit on top of the silverware drawer without moving. In the morning, I can put my coffee there, use as rest for a cell phone, or just extra space for whatever when I'm sleeping on the sofa and others have my dinette bed. I take no credit for the idea...I think I stole it from Floyd.
For the stove top, I stole another idea and went to Sam's Club and purchased a cookie sheet/pan which sits over the top of the stove nicely. I don't use it for prep, but because it offers a flat surface, it allows me to get items off the counter top to use it for prep. I bought little colored cutting boards at Wally (red for meats, green for veggies, blue for ?) that are flippy floppy material and cut on those either above the sink or on the counter itself. I modified the cutting board Scamp
sells by adding those little bumpers mentioned above, and that keeps the board "still" on the sink top for cutting as well.
I cook most dinners outside on the grill, but breakfast and lunch are often inside the trailer. I guess I'm a person who doesn't mind the confined space, and takes pride and finds fun in finding new ways to be organized.
I bought command hooks to hang coffee cups on (under upper galley cabinets) and used zip ties to hang little red baskets to the iron sink supports, which I put spices and other doo dads in. All stolen ideas from this forum, and I am grateful for the inspiration!