Random prices I remember
Movie ticket (1990s): $3.25 for a first-run matinee. $1.50 (older movies) at "the Valley theater." $6.25 evening showing.
Yoplait yogurt (late 90s-early 00s): 4/$1.00, on sale.
Monkey bars (the poor man's Creamie ice cream bar; Provo Macey's, late 90s-early 00s): 16/$1.00, on sale. That's practically FREE.
Candy bars (1990s): 4/$1.00, on sale. I remember when we came back to the US from Moscow in 2003 and I kept waiting for that sale to come and it never did. Never again.
Payphone call (1990s): 25 cents and then, if I really am remembering correctly, 35 cents. I remember thinking a quarter was easy enough to carry around, but a quarter AND a dime?!!? Ain't nobody got time for that.
Gallon of gas (late 1990s): around $1, except for a brief period when it was $1.55 and then went back down again.
Gallon of milk (1990s-2000s): around $2. This price was so stable that it had to be some kind of loss leader for the big grocery stores.
Ice cream (2000s): Around $2.50 for 2 quarts, on sale, good-ish brand. This slowly crept to $2.50 for 1.75 quarts.
A dollar, in Russian Rubles (early 2000s): around 30 (it's now 57).
A dollar, in Syrian Pounds (2000s): around 50 (now it's 515).
A dollar, in Eyptian Pounds (2010): Around 5 (I *think*). (Now it's 17.)