If you are looking for an extremely practical gift, you might try an array of glass cleaners from Invisible Glass. The manufacturer has packaged its products into a kit that has everything you need to keep the glass in your RV clean.
The kit consists of glass cleaner, a glass cleaning tool for hard-to-reach areas, a microfiber cloth, two packets of Invisible Glass with Rain Repellent, 20 packages of lens wipes and a headlight lens restoration kit. The products bought individually would cost $45, but the kit is priced at $29.95 and is shipped with $15 in coupons for future purchases.
Invisible Glass products are sold at Target, Walmart, Costco, Fred Meyer and other retailers, including hardware and auto parts stores. For information, visit invisibleglass.com.