Paint the cabinets. It may seem silly to spend the time, money and effort to paint kitchen cabinets that don't belong to you ... but if you're planning on being in this rental for awhile, it's worth it. I've heard the argument about over-improving something that isn't yours, but the truth is, the space and the time you'll be spending in it is yours. If you're like me, environment has huge impact on your happiness and well-being. One weekend of sweat equity and a few gallons of paint will give you a year of happiness.
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