Walmart offers the Great Value 8.5-watt (60-watt equivalent) A19 LED Light Bulb 6-Pack for $9.90. Opt for in-store pickup to dodge the $5.99 shipping charge. That's $3 off list and the lowest price we could find. (We saw a 4-pack for $6 last month.) They feature a 2700K color temperature and 800 lumens of brightness.

Update: The price has now dropped further, to $9.05.