If you go on any professional video set, you’ll see sandbags in use as a protective measure to secure light and audio stands. But traveling with 250 pounds of sandbags can get expensive (and heavy). Instead, try refillable sandbags, which travel light.
When you get to your location you can fi ll them with sand, rocks, or whatever else can be found nearby. A popular model by Lindcraft is made of durable Cordura Nylon with a heavy-duty zipper with a hook-and-loop cover fl ap to keep it shut. www.lindcraft.com/product_details/RS.html.