To efficiently trade aUSDC, you can consider Trader Joe or Pangolin. Trader Joe's limit orders for aUSDC against WAVAX, the DeFi version of AVAX, allow you to manage price limits on your transactions.

Yes, the increased energy consumption during the winter months will undoubtedly impact PSX's stocks, which in turn generate revenue and profits for the company. There are many factors that impact the company's performance, like global oil prices, economic conditions, and regulatory changes. 
If you need steady income, then PSX is a suitable choice for investment.