i'm not too sure i would look into a removal company. if you only have small things (no furniture), how about getting a taxi? it might sound funny...but it might also save you a few quid (i can't take credit for the idea tho cuz i know someone who did it...i can only take the credit for the suggestion ;-) )
or if you didn't want to call a taxi, you could consider hiring a car for the day. if you rent a 4-door and you are the only passenger, i'm sure you could fit a load of stuff in it, as well as in the boot. that should only be about 30 quid (or less). you could get a friend or two to help you load your stuff and then you could unload it yourself (assuming you didn't have anything that was overly heavy).