Safeway sociological experiment

I have been shopping at the same Safeway grocery store for the past 3+ years. Yesterday, I inadvertently conducted an experiment. My data:

Normal shopping experience (the "control," right?) :

• Time: usually Saturday AM
• Wearing: t-shirt and jeans
• Buying: same old stuff
• Employee reaction: over the years, I usually am greeted upon entering, but am otherwise ignored. Also, in all of this time, I think I have NOT bagged my own groceries maybe twice (even though there are actual baggers working).

Yesterday's shopping experience:

• Time: Tuesday PM
• Wearing: navy pinstripe suit, blue dress shirt, blue/lavender tie (came straight from work)
• Buying: same old stuff
• Employee reaction: I was greeted several times, asked by five different employees if I "needed any help finding everything," and was additionally asked by four different employees if they could "help me." At checkout, a bagger not only left a different lane to bag my groceries, but I was additionally asked by two other baggers if I needed help out to my car.

Conclusion: might not be worth the dry-cleaning bill, but dressing up for the grocery store certainly get results!