How do i water my home plants in my absence?

I am in Noida, India. I have some plants at home. When I go for vacation for 1-2 weeks, the only way to water the plants is to ask some neighbor to do that. But it doesn't always work out good. Does anybody know an economical way to water the plants automatically in my absence? I have heard of automatic watering kits available in US but have not seen in India.

How do i water my home plants in my absence?
Put all of your plants in the bath tub and fill it with water about 1/4 an inch deep.Place something like a mat down first to act as a small barrier between the plants and the water.
Reply:the way I do it is put all the plants into a large flat pan or several of them, put about 3 inches of water in the bottom, then cover the pans with the plants in them with clear plastic and be sure the plastic is sealed tightly ( tape it if you have to ) the moisture will form under the plastic and keep the plants hydrated for a long period of time.
Reply:get a 2 litre empty soft drink bottle and put a tiny hole in the lid or just undo the cap a bit so water can get out and then fill it with water and shove it in close to the roots of your plant. works for me!!
Reply:I'm not sure how long this works but you could put one end of a shoe string in a pitcher of water and the other end down into the soil and the water will slowly asorb and travel down the string into the soil of the plant thus watering the plant. try it out first and see how long it will go before the water evaporates, you may need a bigger container of water. this is a slow watering process it will leave the soil moist to the touch so that the plant does not get over watered. it may take a few hours before you see any initial results.
Reply:You can buy water gel from a nursery. It will last for awhile.
Reply:Water the plants well, put a big plastic bag over it and seal it on the bottom. Don't let the plastic touch the plant (stick in a 12" ruler or stick to prevent it). The water will evaporate up to the top of the plastic and fall back down again upon the plant.
Reply:warriorbabe is right.

Set plants in bathtub with water.

The pots must have drainage holes near bottom or this will not work. Have water filled in tub high enough so water will touch 1/2 of the drain holes in each pot. Some pots may have to be set on a plate or upside down plate to meet the water level desired.