Everybody has holiday hangovers. I'm not talking about the food and drink we've over-consumed. but to those decorations that have seen better days. No matter how far gone they are, we take them back down, tape or splint them together, and tuck them back into a box. They won't improve any in storage, no matter how well we wrap or pack them. A lot of this stuff was never meant to hold up for more than a couple of months anyway, so look at the stuff as short-term trimmings. When the party's over, part with it. ( It makes some of the prettiest color flames in the fireplace!)
Christmas is the big collector here. Most of us have boxes somewhere filled with flattened bows and broken Christmas balls, wads of hopelessly entangled ornament hooks, nonworking strings of Christmas lights and burned out bulbs ( which forces us to retest them all over again next year; tinsel garlands with big stretches reduced to bare string, the two tree stands we bought before the one that finally held the tree up, crushed pine-cone wreaths, a rusty clogged can of spray snow, the ceramic village or candlestick set that was supposed to light up, half-burned Santa candles, and mangy manger scenes.
The New Year comes with it's cache of stained crepe paper, leftover confetti, mashed paper hats, and honkless horns from every New Year's party in the past two decades. Then Easter arrives with all the egg decorating kits you bought and forgot to use and enough Easter grass to turf the Colosseum. Our collections go on through the year, right through the haggard door decorations, scorched plastic pumpkins, coming -apart Halloween costumes. battered centerpieces and cracked turkey platters.
Dejunk!! Do it the morning (or at the very least the week) after the holiday. Have faith, the holiday decoration people will come out with a newer, nicer version of almost anything you've got.