You need to make sure you have enough sunscreen, snacks and other items that you need something to tote them for your happy seaside vacation. The wheels of your carry-on baggage are not completely compatible with the sand. So it is time to prepare a durable and practical bag.
"It's too heavy..."
"I can't make everything fit inside..."
"It's uncomfortable to carry!"
If you ever had these thoughts when packing your carry-on, you've been doing it all wrong.