Ever noticed your order filling at a worse price than expected? That's slippage — it happens when market orders eat through thin order books, especially on volatile pairs. Using limit orders lets you set the exact price you're willing to buy or sell at, so you stay in control 🎯. The tradeoff is your order might not fill if the market moves away, but that's often better than overpaying. This matters most for larger sizes or lower-liquidity alts where spreads can be brutal 📉. Patience plus limit orders equals fewer surprises.