Tantrum in stores

So my 2 1/2 year old can’t go into a store without having a total total melt down and is totally out of control. I know the pandemic is probably contributing to this and we don’t really go out much. But how in the world do I curb these tantrums and handle them. My husband has tried different methods on dealing with her melt downs and still continues to try to go on little outings to the store with her but he can’t even pay he has to leave because she just melts down. Would love to hear advice and what you do when your toddler has a melt down in public/ at the store.