Some storage ideas
I have double-decked several of my shelves. The one over the pantry is double-decked and holds my drinking glasses on two levels. Tall glasses below and mugs/koozies above. The one over the stove is doubble-decked with a lip on the upper deck and holds plates below and desert plates above.
I haven't done it yet, but one of the compartments over the couch will have an upper deck as well. We keep tablecloths, place mats, napkins, and the like there that are much more bulk than weight. That will free up most of the shelf space for heavier items below. The other over-couch cabinet has the radio, CDs, gsmes, etc.
We have more useful space in the 25 Classic than we have been able to fill. The challenge is to use upper shelves and/or dividers to keep the storage neat and organized.
You will probably find, as I did, that there is a whole lot of wsted space behind the pull-out drawer under the couch. I replaced the original slides with longer slides so that the drawer now clears the sofa when pulled out. In the space behind the drawer, we keep lesser used items such as ziplock freezer bags containing our strings of awning lights. I already had some long slides in my shop, but a set of longer slides are only about $12 at Home Depot. The holes lined up just fine to replace the original slides.
John W. Irwin
2005 Classic 28 "Sabre-Dog III"
2013 Silverado 2500HD Duramax/Allison LTZ
WBCCI #9632, TAC TX-10