With earnings season now in full swing, banks and big-cap technology names dominate the schedule for Tuesday, Oct. 16. The early part of the day will feature results from several financial institutions, including KeyCorp ( KEY), Regions Financial ( RF), State Street ( STT), US Bancorp ( USB) and Wells Fargo ( WFC). Also expected to report are health care giant Johnson & Johnson ( JNJ) and U.S. carrier Delta Air Lines ( DAL). Following the close, all eyes will be on the tech sector, as quarterly numbers will be out from IBM ( IBM), Intel ( INTC) and Yahoo! ( YHOO), along with Spansion ( SPSN) and Seagate ( STX). The economic calendar is again light, with the only notable releases being industrial production and capacity utilization from the Federal Reserve and the Treasury Department's net foreign purchases data for August. On TheStreet.com, check out the previews of the trio of key tech earnings, as staff writers Alexei Oreskovic, Vishesh Kumar and Daniel Del'Re tell you what to look for from Intel, Yahoo! and IBM. Elsewhere, if you think there's nothing you can do to stem the rising cost of home heating oil and natural gas, check out the column that's coming from contributing writer Jeffrey Strain, who offers tips everyone can follow to lower those bills. Even if you can't influence the futures market, that doesn't mean you have to simply accept absurdly high expenses to keep your house warm this winter.