A rinsed-out dish soap bottle makes a surprisingly good squeeze-bottle watering can for houseplants, with none of the spilling that comes from trying to pour water out of a cup.
A Simple Way to Reuse Empty Dish Soap Bottles

Some of the best reuses for household items sound unlikely until they're tried once, and this is one of them.
Turn an Empty Dish Soap Bottle Into a Watering Can
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