My fiance is from California and has moved to NY to be with me. We are having our Fall 2013 wedding in NYC (ceremony and reception) however his family would like to host a smaller wedding celebration (note- not a "wedding reception" as we would already be married) in California for those who were unable to fly to NY. We want to give people from both coasts the option of attending NY, CA, or both. Is it acceptable to include info on both celebrations on one formal invitation (ie. allowing guests to check off which location on the RSVP)? If so, how would it be worded on the invite? Thank you!