Put your name on everything that can be marked, with a loud, permanent magic marker (ie: water buckets, wash buckets, feed buckets.) I had both water buckets stolen from my horse’s stall at a H/J show.
If you leave a tack trunk outside of your stall, then bring a lock and lock it. We never used to have trouble with folks stealing at events, but it seems to have become the norm, now.
Lock any money that you bring with you inside your trunk or truck while you are showing. If you plan to unhitch your trailer, then get a hitch lock for your trailer.
At small events, I doubt that you would need that many locks, but the larger venues have had trailers stolen (ie: Kentucky Horse Park had 2 taken a couple of years ago.)
It is sad that eventing has become this way. I never used to worry about anything getting stolen. I had an expensive Fleeceworks saddle pad stolen at the AEC’s at Chatt Hills. I had it behind the stalls drying, with some other saddle pads. My experiences are probably not the norm, but it is better to be aware that it could happen.
Sorry to get off track. Using the check list that someone posted is a great idea, too. Now that I have been such a negative Nelly, I do hope that you have a blast! :yes: