You can get a special tool that hooks under them and pulls them out roots and all. Good for lawns and between paving slabs. You need to get the roots right out or the tough little buggers just keep coming right back...
You want a weed killer with glyphosate in it. I use reslove 24 on my patio and shingle drive way and that nukes them. Spray plenty on to the leaves and it will carry it down to the root and kill the whole thing.
Thank you for the replies. Weed killer has been pretty ineffectual when I've tried before. I try & slice them out of the cracks iyswim but they seem so much worse this year already. Rabbit sounds good but dog might think its Christmas come early!
Think I might go for boiling water & weed killer. Thanks for the suggestions. Shame paraffin one is illegal!
Rip the heads off whilst they're still yellow, to minimise the chances of seeds flying around.
Weed killer on patios. You can get ones whihc aren't a problem with kids or pets around.
Or, get down on your hands and knees with a knife to get between the slabs and prize out the roots. You need to get rid of as much root as possible, dandelions can grow back again from a small piece. Evil feckers, as I say.
Keep pulling them up. Every time you go in the garden, pull another few up. They will grow back, pull them up again. Eventually they will die if they can't grow for long enough for their leaves to get the light.
Ideally pull them up from below the level of the leaves so the great long root comes up as well, but most importantly pull them up.
Help please. I am a bit of a reluctant gardener. We seem to have been invaded by dandelions. Is there anything I can do to get rid of the beasts short of torching my patio? I just want to create a nice space for the dc's to play in doesn't have to be anything fancy!