Coming off benefit puts you into one of the highest effective tax brackets as you get deductions at more than 50% for each pound you earn. More people might be encouraged to work, if they didn't think that their income would stay the same (or get worse) just because they want to work.
Free us from tax allowances and benefit systems bureaucracies by alloting each citizen a guaranteed £150 per week. No extras, no deductions for working.
Why is this idea important?
A huge saving would be made from deleting the need for armies of people administering and managing the benefits system. Tax calculations would be simplified. The incentive to work would not be affected by high marginal rates of tax.
I've not done the maths, but it would be good to know what the cost and saving would be.