I'm currently getting an average of a couple of days a week of day to day supply. I'm registered with 2 agencies (and when my other reference comes back, it'll make 3). I have had a couple of phone calls from 2 different 'umbrella corporations' (one on behalf of each agency currently finding me work) and I was wondering if anyone else does this, and if it's worth it? From the gist I've got so far, I get to claim mileage and other expenses in exchange for a fee of between £15 and £20 a week, depending on how much I'm paid, it ties all my day to day stuff together to make one continuous employment. I would think it would be easier in terms of tax etc to do this, but even though I know these guys are running a business and have to make their money somehow, I'm not happy with the idea of paying them some of my money in order to do it.