Like Devo suggest a set of Butler Creek Flip up scope covers eliminates a lot of worry about the lense surface and also helps protect the lens as well. The investment is meager considering the return IMHO, a set runs under 20 bucks. Make sure you get the right ones as eyepieces and objectives are different(the best option is take your rifle or if your buying a scope find the proper Bulter Creeks before leaving the store).
Here is a link to them at cabelas:
http://www.cabelas.com/cabelas/en/templates/pod/horizontal-pod.jsp?_DARGS=/cabelas/en/common/catalog/pod-link.jsp_A&_DAV=MainCatcat20712&rid=&i ndexId=cat20758&navAction=push&navCount=1& amp;parentType=index&parentId=cat20758&id= 0031747