RVing Tips For Beginners. RVs come in all sizes…from cute little teardrop trailers to diesel pusher motorhomes that are bigger than the typical New York City apartment! You might have the urge to over-pack your RV just because you have new storage spaces to fill. DON’T DO IT! Resist the temptation and only pack what you need and keep it organized because clutter builds fast in small spaces and you can avoid that problem with proper planning and organization tools.