The problem with the benefits system in this country is largely the fact that it's too complicated.
I have the current displeasure of working in a Housing Benefits office, and the whole procedure is a mess. One of Blair's proposed welfare policies while he was in power was the 'tell us once' system. Meaning that if someone's circumstances changed, if they had another child or something like that, all they would have to do is tell one Government authority e.g. HMRC, and they would in turn inform the Local Authority in charge of Council Tax, Benefits etc.
This proposed system was never put in place and instead a benefit claimant has to go round the houses and tell DWP, Housing Benefit and HMRC separately if they've had a change in circumstances.
In addition, a local authority will ask for all sorts of information from a new Housing/Council Tax benefit applicant including documentary evidence of Child Benefit and Tax Credits. The problem is that a large amount of applicants will be applying for CB and Tax Credits at the same time as they are doing so for Housing Benefit.
Documentary evidence from HMRC, for no apparent reason, can take up to 13 weeks to come through. By that time the Housing Benefit application has been severely delayed, and a backlog is created by all the new claims that come through as they are pushed to the top.
The immigration situation in the UK complicates this further, I work in Bradford, which as well as having a high population of Pakistani and Polish people, also has a high number of Slovakian immigrants living in the city. Its the Slovaks that are the problem, most Pakistani and Polish citizens can speak relatively good English, but the vast majority of Slovaks have little command of the language and show no desire to learn, as a result when the letter from Revenues and Benefits drops through their letter box, they cannot understand it and end up providing the wrong evidence or none whatsoever, adding to the backlog of claims.
Most Slovaks with successful claims are on the fiddle as they have lied or provided misinformation, which has somehow been accepted by the assessment team, to push the claim through. The number of Slovakian immigrants me and my colleagues have discovered to be claiming fraudulently in recent weeks is quite frankly ridiculous.
I've rambled on a bit, but just wanted to get some of my work frustrations out and this seemed like the best place to do so. I hope to be leaving this particular line of work soon anyway so its all good.
I agree with the £26,000 cap, but keep Child Benefit separate, I've got nothing against everyone getting that. However, the rest all needs to come under one benefit, payed weekly. Child Tax Credit should be scrapped, its like an incentive for people to have kids and the amount some people receive is extortionate. Working Tax Credit needs reforming, it should be part and parcel of the Universal benefit yes, but even in its current form it needs changing. As it stands you have to work a certain amount of hours to receive WTC, that's bollocks, if the government really want to help get people into work then it should be available to anyone who finds work, regardless of the number of hours.
I don't think I've articulated myself well there and I've rambled but I hope I got my points across

Bit of a semi-rant that tbh.