Ban riders in all legislation in congress.

The use of riders is prevalent and customary in the Congress of the United States, as there are no legal or other limitations on their use.
Riders are most effective when attached to an important bill, such as an appropriation bill, because to veto or postpone such a bill could delay funding to governmental programs, causing serious problems.
When the veto is an all-or-nothing power as it is in the United States Constitution, the executive must either accept the riders or reject the entire bill.
To counteract riders, 43 of the 50 U.S. states have provisions in their state constitutions allowing the use of line item vetos.
http://en.wikipedia.org/wiki/Rider_(legislation)