Howdy pardner! Name's Zalgo and I'll be the one givin' you the best answer today. The correct sentence format would be "Today we went to the store, to the post office and to the park."
I hope this info helps ya out, compadre! >:P
"Stay Brainly and stay proud!" - Zalgo
(By the way, can you mark me as Brainliest? I'd greatly appreciate it! Thank ya partner! :D)