I usually store empty mineral water bottles befor any holiday or travelling plan.
According to the size of the plastic bottle, make 2 or more very small holes (with a needle or similar) in the bottom of the bottle. Fill the bottle with water, turn it upside down keeping it closed with one hand and push the bottle neck into the pot. The water will drop into the earth very slowly (it all depends on the size of the holes) and keep the plant in good shape for a number of days.
Pifano, thanks for the great tip- I'm sure that will help other people as well. I sure hope you are safe and sound over there. Betty, that's always my problem too...where do the dogs go? Can't much put them on a drip system! lol
Thanks for the great information. It came along at just the right time so I could share it with a friend who will be vacationing soon. Do you think the diapers might help inground plants that need lots of water? I thought I might line the sides of the hole when planting. Maybe it would be good for one season.