"Hedging your bets is something which very much boils down to the individual, how confident a gambler you are, how well you cope with losing runs, what kind of form/financial situation you are in "
...and how greedy you are. I would always, always, get at least some of my stake back given the opportunity. In fact, I sort of subconsciously factor it into my bets now- as in, if I were to back a horse at 9/1, I would (given the time and opportunity) put in a lay of around 2/1 or 3/1 as insurance. Likewise, if I'm looking at a price of 5/1 for a football/golf/motor-racing/tennis/whatever bet, I'm actually seeing 7/2 or4/1 in my mind.
I've had discussions on this before with Seen and I probably think I'm over cautious but it's become my style now and I never, ever begrudge the money that I've missed out on because I know there's nothing worse than near misses costing money.
On the subject of backing and laying Liverpool, I thought they were too big a price at various stages of the season but never, ever thought they'd actually win it. I backed them at 13 and 17 in September and laid off and then backed as high as 24 in January and when I got the chance to trade out at 16 I nearly snatched their hands off. I've just looked at my back and lays and, if I'd just stuck to backing and laying Liverpool I'd be sound
Potential net loss on Liverpool alone £238. Potential win £3176. So I have them at average odds of around 13/1- clever me

- just a shame about the other bets
Last weekend's Liverpool Chelsea and the Man City matches cost me a few hundred in running (which is part of my hedging/laying process - one that's made me an overall profit considering Liverpool's winning streak and the City/Chelsea "shock results) but if Liverpool go on to win the league it will have saved me a four-figure sum because it gave me the opportunity to be able to lay some of City off at around 4/5 (previously around 4/1 before kick off) so even if Liverpool lift the title and I end up losing - which I think may well happen, I'm happy to have reduced my potential losses compared to the balances I was looking at this time last week. And if City go on to win, again I won't bemoan what I could have won, I will just be happy to have dodged a bullet with the big loss I was anticipating.