Online arbitrage Q4 or the fourth quarter is from October to December. It is the time that every seller is waiting for and is the high selling season. You can earn in these 3 months half of your yearly income. But it is rush time, and if you are not experienced enough, it can be stressful at the same time. Sourcing items are tough because they run out so fast. If you don't plan, you might spend the rest of Q4 with an empty inventory. We suggest you don't wait for the last 3 months of the year and keep selling now. Stay organized and watch the trends before the busy season so you can identify the possible hot toys in advance, for example.