Water
Unfiltered tap water swap to Certified water filter
Step one is free: check the water quality report EPA requires your supplier to send each year. If it lists PFAS, or your home may have lead pipes or older brass fixtures, pick a certified filter: one clips onto your tap with no tools, and one fits under the sink if you can install it.

Our pick
No tools, renter-friendly: PUR PLUS faucet filter, vertical (FM2500V)