A very effective and frugal cleaner for your stainless steel appliances may be hiding in your pantry: vinegar. Simply fill a spray bottle with undiluted white vinegar, spray on all your stainless steel surfaces, and wipe dry with a soft cloth.
This method works because the acetic acid in the vinegar cuts through the oil left behind by fingertips, rather than smearing it around like other cleaners. Some cooks use lemon juice, which has a similar effect.
Vinegar works well to remove stains that result from heat and hard water, even on cutlery. To remove them, apply white vinegar with a soft cloth and rub gently. Dry thoroughly to prevent a film from forming.