Where to buy arugula, baby spinach & other salad makings

See this thread for an earlier discussion on the same topic:

Ha. It used to be $250 for 250g, right? Now it’s $270 for 150g, which is well into ridiculous territory. Kale is no longer in the plastic boxes, but now in bags.

Jason’s sells bags of salad greens, but I’ve never bought them because they never look that good.

A couple of months ago Costco had good-sized boxes of mixed salad greens. Are those still available?

Baby spinach has reappeared in the Danshui Costco - imported from Australia, I think? They’ve also got boxes of, um, mesclun I think it was.