I don't have a clothesline in my garden - not because I don't want to, but because there's nowhere really suitable to string one up - so really ought to get a little bit more inventive and try to find a way of having one. While I do like the finish of tumble dried laundry, even that doesn't justify running a condenser dryer during the summer and having it dump heat into an already stuffy house, not to mention the energy costs. Line drying can indeed be quicker on a good day as Hoovermatic already mentioned, plus it's also a far more suitable way of drying starched laundry.
As a compromise I do use folding drying racks, which I can either set up inside the utility room on wet days, or outside on the patio if the weather is pleasant. Also have a tripod-like device from which clothes can be dried on hangers, which comes in handy when ironing too. Not perfect, but still better than my old habit of putting everything in the dryer all year round. Now try to use the dryer only for bulkier items such as bed linen and towels, until I find a better solution for hanging those up to dry too.
Cheers,
Kirk