Reduce requirement for thieves' guild.
I don't exactly know how many successful attempts are required to be eligible for the thieves' guild, but is just too many. It is mindless grinding the skill at the moment.
In my opinion around 30 successful "The -foo- doesn't seem to have anything of value." should be proof enough that you are a thief. When you actually steal something it should count as 2 or 3 successful attempts.
Pardon if this is a duplicate, but I did search.