Keep Houseplants from Leaking Dirt with Coffee Filters [Clever Uses]

Keep Houseplants from Leaking Dirt with Coffee Filters [Clever Uses]:
Indoor planters usually consist of the planter itself (with a hole in the bottom to allow drainage) and a saucer to hold any excess water from the plant. Occasionally plants need to be moved around and sometimes dirt can leak out of the bottom of hole in the planter. To avoid this cover the hole on the bottom of the planter with a standard coffee filter.
This tip comes from This Old House's site. The coffee filter will allow water to pass through but not soil. No need for a new filter as a used filter with the coffee grounds still in it works great. Eventually the coffee filter will biodegrade and need to be replaced, but at that point the plant's roots should have developed enough to hold the soil tightly and keep it from leaking out of the pot.
10 Uses for Coffee Filters: 7. Make Houseplants Less Messy | This Old House