Well one trick if you have alts is to farm the furniture on them and send it to the toons you actually play. That way you can use all the marks you earn to buy the trinket, styles etc that you can't trade. Worst comes to worst you can always use replay badges to share the feats across your toons that don't get it done if you want to play them.
I only have one alt at the moment, and yeah... he's been sending furniture over to my main all week rofl Actually... to my ebarassment, I just figured out yesterday how to repeat the second part of the seasonal quest. Since the mission never appears again after the first time you run it, I thought it was just a one-time thing. When I realized that I could repeat it, it was as though I instantly heard thousands of snarky internet denizons shouting in unison "IDIOT! BOTH ORACLE AND CALCULATOR ALREADY TOLD YOU WHAT TO DO! FAIL HARDER!" rofl