Don’t buy yeast in those little envelopes they sell at the grocery store; its crazy expensive! I just went to the store to see how much they are. A three-envelope set was $2.62. That works out to $55.89 per pound! They also sold little 4 ounce jars for $9.20.
That works out to be $36.80 per pound.
If you shop around you can find one-pound or two-pound bags of yeast for from 2 to 5 dollars.
Which would you rather spend; $55 a pound or $2 a pound?