Upgrading the exterior of your home like replacing a garage door, siding, or windows, or adding a deck are some of the most valuable home improvements you can make in terms of recouping spent costs. Minor kitchen remodels may also be a worthwhile investment. Adding a pool, home theater, or over-the-top luxurious items compared to other homes in your market are examples of upgrades that may bring you joy, but may not offer the highest return on investment.