I don't travel much by plane but I use a wide variety of companies. Since there is not much harmonization, specially with LCC, each one has its own requirements about luggage size, weight, extra luggage price, need for on-line check-in and printed ticket.
Each time I fly I ask my self what are the requirements, and although I can check them online at the official website this can't be quick, sometimes I leave it for last or, with so many, I just confuse airline requirements.
Is there a website or resource that lists this information? This would be very useful to quickly check or just compare requirements.