With savings rates at rock bottom how do savers ensure they are getting the highest rate. Particularly when the bonus expires?

The savings comparison on this site is pretty good - http://www.money.co.uk/savings-accounts.htm - I used it earlier this month when my introductory bonus period ended. I added an entry to my outlook calendar to remind me to chance savings accounts.

It is best to look around. I have a nationwide isa, paid somthing like 0.25% interest. I never had much in it - but this year only getting 29p interest for the whole year made me look around. I now have an E-isa account and get 2.75% i received £4 in interest within 4 months of opening it - and had less money than in normal isa! I know it isnt going to pay much for the time being but better to have an extra £3.71 in my pocket than the banks!

I do what MrWallet does...I set reminders for just before bonuses run out, and I keep a close eye on what's on offer via comparison sites and the press. Most of my savings are in fixed rate bonds though, so don't need to be changed so often.