If you are a procrastinator, don’t fly Spirit. If you don’t want to pay for the permission of carrying your rollaboard on a Spirit flight, don’t book the flight. If you want a rock-bottom airfare, maybe Spirit is the airline for you. But, make sure to figure in all of the extra fees.

And if you are the kind of passenger who tries to stuff the full 50 lbs. of clothing into your suitcase, get ready for even more extra fees. Overweight is being redefined.

Watchout procrastinators! Spirit Airlines is now charging more for luggage if you wait to pay within 24-hours of departure. This applies to both checked bags and carry-on baggage.

What was once listed as baggage fees will not be renamed “Early Birdf Discount” fees and anyone checking in carry-on baggage or checked luggage will pay a penalty for making up their minds late. Any passenger checking any luggage within 24 hours of departure will pay an extra $5 and an extra $10 for if paid over the phone.

Spirit is the only U.S. carrier that charges for carry-on bags. Since April 2010, passengers who pay for carry-ons early — and aren’t members of the airline’s fare club — pay $30 for a carry-on that won’t fit under the seat. That same carry-on bag checked at the airport now will cost $40 at the counter or kiosk and $45 at the gate.

All travelers who purchased their tickets on or after March 24 are affected by this change.

Together with this new baggage policy, Spirit Airlines has decreased the weight from 50 pounds to 40 pounds for overweight checked bags .

Spirit will charge and additional $25 for luggage that weighs between 41 and 50 pounds. Bags weighing more than 50 pounds on Spirit incur $50 to $100 overweight baggage fees, depending on weight.

Most U.S. airlines start charging overweignt fees at 50 pounds.

Spirit seems to have worked overtime to come up with these fees. Is there any difference in the cost to carry a bag if it was paid for 48 hours prior to the flight, or if it was paid for 8 hours before the flight? What started out as an airline-justified cost because bag shouldn’t fly free and they cost us more money to transport, has now morphed into fees for fees sake.

I would love to hear Spirit Airlines’ rationale for this late fee. I used to be a fan of the plucky carrier, but now I’m planning to avoid them at all costs. They’ve gone fee crazy. Next, Spirit will be charging more for passengers who check in an hour before the flight rather than three hours earlier. Or passengers wearing brown shoes will be charged an extra non-black-shoe fee. Once we enter into the fees for fees sake, the sky is the limit.

What are your thoughts? I’ve simply had enough. There are no reasons to subject yourself to this kind of treatment.