How do we reduce government expenditures?

Have you ever heard of the phrase Sine Die?http://en.wikipedia.org/wiki/Adjournment_sine_die

First step would be to eliminate these clauses in Bills approved by Congress.

Perhaps you can look at Page 36 that is part of the legislation introduced by Senator Reid in July (S. 3663) titled "The Clean Energy Jobs and Oil Company Accountability Act". http://democrats.senate.gov/pdfs/The_Clean_Energy_Jobs_and_Oil_Company_Accountability_Act_of_2010.pdf

In addition, why can't we have bills that simply state the purpose of the legislation and do not have so many redundant sentences?

The beauty of legislation is its objective and brevity such as "The Interstate Highways Bill". http://www.ourdocuments.gov/doc.php?flash=old&doc=88