Spirit Airlines is the latest carrier to charge ever-increasing fees for carry-on bags. The boost from $45 to $100 makes it actually more expensive to stuff bags in the overhead bin than the price paid for some tickets.

For example, a current Spirit special offers “cheap fare” round trip from Los Angeles to Las Vegas for $82, fees and taxes included. If that’s all you want to pay, take along only small bags that fit under your seat.

This latest effort to extract more money can add to the frustration of passengers who already pay $150 for those $99 specials other airlines frequently display in their ads. It seems there’s always a 99 rip-off somewhere in misleading ads, such as typical gas station signs that offer $3.99 and $4.99 per gallon.