Hrmm. Perhaps we're going about this the wrong way ? How about this:
Limiting the exchange to two times a year. Once in the spring to dig us out of the cabin feaver, and once mid-fall to decorate our houses for the holidays (note - this will work out for those south of the equator as well...abit in reverse ).
We haven't even gotten all of the cards from round 6, and people are already looking towards round 7. For me, as with Kate, the expense is one part of it - but quite frankly, I don't have that many good negs to use yet either .