Too big. Too tight. Wrong color. What is it? Need to return a Christmas gift? Here are some tips.

Christmas Day has come and gone.

The wrapped presents that had so tantalized those for whom they were intended no longer occupy a space under the tree. Instead, they have been played with, tried on or put away.

There are, however, those gifts that didn’t quite create the intended reaction. Those gifts that, for one reason or another, face one of two fates: They will be buried in the back of the closet, forever to be forgotten, or they’ll be exchanged for something else.

Don’t like the pink bunny pajamas your Aunt Mildred got for you? No need for the 16-piece ratchet set from your brother, Jim?

Here’s the good news. As long as they bought these gifts, you can probably return them.

Don’t feel bad about doing it. After all, more than $90 billion worth of goods were returned during the 2017 holiday season, according to the tech firm Optoro, which processes many of those returns for companies such as Target, and finds those items their “next best home.”

To make your return as painless as possible, here are a few tips.

1. Have a receipt.

It’s not the end-all, be-all if you don’t have a receipt. However, if you want to increase your chances for a smooth return process, having a gift receipt helps.

That little piece of paper could be the difference between getting a full cost — in the form, generally, of a gift card — or not quite full refund. Some stores will take items back without a receipt, but you’re most likely to get back the lowest sale price of the item. If you’re bringing back an item without a receipt to exchange it for a like item, it’s generally not an issue as long as you take it to the store (or chain) where it was purchased.

Tip: Always get a gift receipt and include it with the gift (or save it when receiving a gift).

2. Don’t wait too long.

Some people know from the moment they open a package — even before trying it on for size — whether they’ll be keeping the gift. Others need to give it a little more thought. Just don’t wait until spring or summer to figure out that cute outfit is the wrong size.

Many stores put a time limit on when they will accept returns.

Target has a 90-day return period, save for electronics, which have only a 30-day window. Walmart offers a similar time frame.

Kohl’s website states most credit-card purchases can be returned within 16 months, although premium electronics — purchased between Nov. 1 and Dec. 25 — must be returned by Jan. 31.

Macy’s allows 180 days after purchase to return. It also has an extended holiday return policy for electronics.

Tip: Make sure to double-check the store’s policy online before you head out to make the exchange, or to see how much time you have to think about it.

3. Alexa, I hate my Amazon gift.

More and more people have eschewed the hectic world of in-store holiday shopping in favor of the more serene experience of ordering online. And many of those online shoppers are ordering via Amazon.

According to Business Insider, more than 50 percent of all online retail sales in 2017 were through Amazon. This year, it is expected to account for even more of those sales.

The company’s policy is much like Kohl’s, in some respects. For items shipped between Nov. 1 and Dec. 31, customers have until Jan. 31 to make returns.

To start a return, visit the Amazon returns center online and follow the simple instructions to complete your return. The service “allows gift recipients to return items marked as a gift at the time of purchase,” according to the webpage. “The type of refund or credit you receive depends on how the gift was purchased and how it’s returned.”

Amazon does not allow gift recipients to make exchanges or get instant refunds.

There are restrictions for certain special items, as well as those shipped through a third-party seller.

Tip: Save the Amazon packing slip/gift receipt so that you have the gift order number — the 17-digit number on the left side of the slip — handy for the online exchange. If you don’t have the order number, a tracking number from the box, the gift-giver’s name and address, email or phone number will help.

4. Do not open, unless you already did.

There’s one last thing to keep in mind, especially for products such as computer games, CDs or DVDs. Once you’ve opened the packaging, you’ve probably greatly reduced the chance to return the item.

That’s not true for everything. However, a pretty good rule of thumb is that opened packaging or tag-less clothing are going to be much more difficult to exchange. However, as with everything, the best bet is to check with the individual store before you go to confirm.

Tip: Don’t remove clothing tags or remove video games, CDs, movies and similar items from the product packaging unless you’re sure it’s something you don’t wish to return.