I do try to be efficient at this. I look around for good rates and open accounts (usually regular savers), I switch current accounts to get bonuses, etc but then I end up with money in low interest accounts after bonus rates end because I lose track of it all.
I want to get on top of this as I've counted up this morning I have more than 10 savings accounts and only 3 of them are on competitive rates.
What's your technique? Do you have everything listed on a spreadsheet/paper showing the accounts, % rate, date the rate/fixed period ends, and just review that each month? Is that as complicated as it needs to be?