You need a laptop that handles remote work on the move and lasts for years so you only buy it once. Look for strong battery life, a comfortable keyboard, and enough power to juggle dozens of browser tabs and video calls without choking.
Shop the back-to-school sales in July and August when retailers discount current gear. If a brand-new model just dropped, wait a few weeks for last year's version to go on clearance since it usually has nearly identical performance for a lot less cash.
Remember that the intro window is a hard deadline, not free money, and any remaining balance when it ends will trigger standard interest charges on the full original amount.