Plants die quickly? Boil tap water let it cool and spray your plants with boiled water. The somewhat tropical houseplants you better of spraying them regularly with the same water.
Do you suffer from rapidly dried out plants? I have been using for a few months a method that delivers great results. When you give the plant water should you do hereby 3 cloves of garlic and you'll see that the water remains much longer in the pot, this is partly due to the moisture-retaining function of garlic.