This week's Cala/Bell Market ad states that with a $20 purchase you can buy a turkey For 39 cents a pound.
Oceanspray cranberry sauce: 79 cents at Walgreens
Cheapest produce on this side of SF:
The two Latina frutas/verduras mercados on the north side of 16th. st. between Valencia and Mission.
The one closest to Mission tends to be cheaper (mas barato) but there are exceptions (notably red bell peppers can be 59 cents a pound in the one closer to Valencia but $1.99 a pound at the one near Mission - porque? Quien sabe?).
Prices at the mercado closest to Mission (as of last friday):
Tomatoes - #3/$1
Small unwaxed cukes - #4/$1
Bananas - #3/$1
lemons - 6/$1
organic seedless black grapes - 69 cents/#
green grapes - 50 cents/#
large celery - 69 cents
lettuce - 69 cents
corn - 3/$1
carrots - 39 cents/#
onions & juice oranges - #5/$1
Also very cheap is the Civic Center farmer's market, but it's only open Wed. & (I think) Sat.