Make your summers count! There are many opportunities for summer research projects for undergraduates. Most of these programs will accept students who graduate this year. (Just ask). Typically, it is a 4-8 week program. Here is a link to the list of the 2012 Math REU's:
There are a number of programs in Statistics as well. If you are interested in some other applied math area, do a search on the NSF site, http://www.nsf.gov/crssprgm/reu/reu_search.cfm.
Most of the deadlines are in February and March.