are simple: most airlines have a standard baggage size limit, usually around 62 linear inches (that's length + width + height, for you math whizzes out there). But, and this is a big but, each airline is different, so don't even think about assuming you know the rules. And, trust me, you don't want to be the one trying to squeeze a giant suitcase into a tiny overhead bin.
Now, I know what you're thinking, "What's the maximum weight I can carry?" Well, that depends on the airline, the route, and even the type of ticket you have. Some airlines are super strict, while others are a bit more lenient. But, let's be real, if you're trying to sneak on a small elephant as a carry-on, you're probably out of luck.
And then there's the carry-on conundrum: can you fit all your essentials in a tiny bag, or do you need to check a separate bag? It's like trying to solve a puzzle, except the puzzle is made of shoeboxes and sweater sets. But, don't worry, most airlines have a handy baggage size chart to help you figure it out.