When trading on DEX, these details are crucial to reduce costs. First, Gas fees must be manually adjusted; do not use the default settings. Slight optimization can save a lot of money. More importantly, choose the right currency — using BNB as the trading pair can completely avoid sponsorship fees, saving a significant amount. However, if you trade with U or other assets, the system will charge an additional sponsorship fee. After configuring all these settings, you can achieve zero-fee transactions when selling, saving several dollars in fees each time. Conversely, if operated casually, a single transaction could cost several dollars more, and over the long term, these costs can add up significantly. So, taking some time to fine-tune these parameters is very wallet-friendly.