I was watering my plants the other day when I noticed that most of the water was running down the sides and out the bottom of the pots (yes they're in pots for now). I didn't spend much on the potting mix they are in and was wondering if there is a cheap solution for this. I know you can buy soil wetters and i have tried the cheap ones but they seem pretty crap (and short-term). Would a tiny drop of dishwashing liquid be in the water enough to break the surface tension and help the water soak right through? *EDIT: Without harming the plants of course!