Thanks everyone. I'm still in two minds.
The incidents I've had have fallen into two main categories.
I live at the top of a hill. So whichever way I go, it's uphill back home, and I'm very slow uphill. There are a couple of roads that are 40mph limit, and quite wide, but have bollards that narrow the road. People just squeeze by at these points, without slowing. I've had to hop onto the pavement several times as articulated wagons have been within a few inches of me as they squeeze through at terrifying speed.
The other main issue is the right hand turn at the top of the hill. It's a busy road, and there is just no way I can get across a stream of traffic still doing 40 (though the limit has dropped to 30 at this point) to get to the right hander. So I have to dismount and cross the road at an island as a pedestrian pushing a bike. Whenever I cross here without my bike, there is no problem. But every time I cross with the bike, I get a torrent of abuse from several drivers. Even when I'm just standing on the pavement waiting to run across in a gap, people gesticulate and mouth obscenities. I don't have the wheel in the road or anything, just stood waiting to cross.
I am really enjoying cycling at weekends when I can get out at about 7 AM, but in the evenings on weekdays, I've been stunned at the level of hatred that emanates from people driving. Even though I've only been cycling a few weeks, I've always been one of those drivers who gives an extra yard to cyclists, and perhaps naively I thought everyone else would do the same.
I'm actually starting to think I should just not bother cycling in the week, and keep it to early hours at weekends. I'm just doing it fitness, not for transport - I have a 100mile daily round trip commute, so won't be doing that by bike any time soon! I really wanted to get out 3-5 times a week, but may just have to accept that not really feasible just yet.
I really ought to get Cycle Craft. Is it the one on amazon? I found something there I think, but it looked a bit odd, so I didn't buy it.
Globalti, thanks for the invite, but there is no way I can ride 35-40 miles yet. My absolute upper limit is 11, at 8-9mph average, and then I'm shot. Also, to be honest, a big part of the appeal of cycling is that it can be done solo. I'm really not a group activity kind of person.
Mr_hippo, I'm 46 years old, 280lbs, in Middleton M24, and last cycling experience was as a child 35 years ago, when most of the people in our neighbourhood didn't even have cars, and the roads were perfectly safe to play football in!