First, it's messenger bag, then rucksack, afterware come saddlebag, of which get bigger and bigger to the point of ditching it entirely for a front rack so you don't have to ride home holding a pizza box with one hand while steering and braking with the other.
And then eventually a rear rack combo with some panniers, and before you know it, you've gotten yourself a trailer;
First, it's messenger bag, then rucksack, afterware come saddlebag, of which get bigger and bigger to the point of ditching it entirely for a front rack so you don't have to ride home holding a pizza box with one hand while steering and braking with the other.
And then eventually a rear rack combo with some panniers, and before you know it, you've gotten yourself a trailer;