lifestyle Costco secrets that the employees think you should know (11 Photos) By: Chase In: Food and Drink, Interesting, Lifestyle Mar 26, 2018 489 Liked! 88 Disliked 0 1 Mondays and the end of the summer are some of the best times to shop. Mondays and weekday mornings tend to have the least amount of people in the store, and the end of summer is a great time to grab marked-down outdoor furniture. Like this post? 489 Liked! 0