Shopping at Costco can sometimes be a two-person operation.
One immediately rushes to get to the massive checkout line while the other wheels the cart around the store. But if you plan wisely, and go during down times you could probably do it solo.
The best time to hit Costco is weekday mornings, before 11am. Weekends can be a nightmare and there is usually a rush of shoppers at lunchtime.
Another great time to get in and get out: weekdays afternoons. The two hour window between 3 and 5 helps beat the afternoon post-work rush.
Some Costco managers even suggest luck with avoiding crowds by shopping an hour before closing. You can thank me later!