High winds and reflectors during outdoor photo shoots?

How are you keeping your reflectors and lights anchored in place when winds pick up during photo shoots that are outdoors?  

I have 4 sand bags I keep in my trunk that I bungee cord to bottom of my tripod 

Wedging rocks or my camera bag on tripod bottom or legs 

LOL I'm more getto then you all.  I have grocery bag with rocks in it under my tripod.  Looks silly, but works if I can find rocks. 

I'll use a bungee cord strapped to my camera bag.  It works, but a PITA when I need to get other items out of my bag

Wedge camera bag against one of the legs, I find the hooks under the center nearly worthless.  

That’s why I’ll have an assistant with me on certain shoots.We live in a windy area and I’ve learned the hard way far to any times than I care to admit.  

All of the previous suggestions work to some degree, and I've used them all, but sometimes nothing will hold your photo gear in place. Good luck, or sometimes cancelling for another day is the best decision.

I always carry several pair of boot laces, preferably black or brown, that I have used for tying things down. I have added a 1/4-20 threaded "eye nut" to the bottom 1/4-20 bolt of the center post of my tripod (not all tripods have them), so I can quickly clip my camera bag or sand bag to it with a "D" ring, but have also resorted to tying it down to a big rock with a boot lace a few times. Boot laces of about 42" are easy to find (I carry 3-5 pair). Black Parachute Cord of about 3/16" diameter is available in Walmart and other places, and it works well too, but needs cutting and melting of the ends to prevent fraying, where the boot laces don't. "A-clamps" carried with you sometimes help too.

Minimizing the size and placement of lights, soft boxes, and reflectors is usually the best way to deal with the wind. The boot laces or parachute cord gets used to tie light stands to big rocks, railings, fence posts, stakes driven into the ground, etc. Gaffer tape sometimes helps here too, as stands are slippery.

Need a reflector ? How about a white building wall. Need light ? - how about better use of the Sun, maybe with an assistant or willing volunteer holding a large folding scrim to spread and soften the Sunlight on the subject.

They make water weights for pop-up Sun shelters and these are light for transport, but can be filled with water at the location for the needed weight. Consider empty plastic gallon jugs as a cheap alternative. Cheaper yet, are grocery bags with small rocks filling them at the shoot location, and then the rocks returned to their places after the shoot. Don't carry heavy sand or rock filled sand bags a long distance to an outdoor shoot. Carry them empty and fill them on location with something heavy at the location. Return these items to their origin after the shoot and carry out the empty sand bags.

A hand full of "D" rings brought with you can frequently help to hold the sand bags in place. Don't forget Gaffer tape. You most certainly will need it for something, if not to hold the sand bag alternative to the stands.

A few pieces of white foam core board make great and disposable reflectors that can be held by your assistant, by a volunteer assistant (almost every shoot has a few watching), or maybe clipped to an extra stand or two, (if you brought them with you).

Butterfly lighting seems to be the rage now, and I don't have one of those fancy "U" shaped photography reflectors, but I do have 3 pieces of 13 X 20" white foam core board taped together end to end, so it folds in a "Z" shape for travel. Opening, and then having an assistant or your subject hold this as a sort-of U shaped reflector in front of the subject makes a pretty good reflector for Butterfly Lighting and has worked well for me. It survives better in the wind than an expensive wide U shaped factory made Butterfly reflector too. If it should get damaged, you can repair or make a whole new one quite easily and reasonably. 

Charley

Weights or sandbags, not much else you can do

You should see some of the winds we get here, horrible.  I have a friend who I use to hold my lights and reflectors because I have lost a number of these from winds over the years.