What I'm about to suggest will sound 'new age', 'touchie-feelie', 'mumbo-jumbo' but it works!

It seems you have to go through SOME process to get rid of your stuff but you get caught up in a mental quagmire. to streamline the process, I recommend that you do a physical test to see how you really feel about the item you have considered decluttering.

Do this with a partner.

Put your hand on the item or hold it in your hand if it is small enough. Close your eyes and picture the item in your mind. Don't make a value judgement about it, just keep the image in your head. Put out your other arm to your side so it is level with your shoulder. Have your partner push down on your arm. Yes, try to resist. If you find you can't resist, get rid of the item. It is causing negative energy for you and it is dragging you down. If you can resist, then it is an item you can keep.

I find garage sales to be taxing. I much rather put all my stuff out front with a sign that says "Free!" At the point where the stuff goes outside I'm usually so glad to see it go, I'm thrilled that people are carting it off for me! In the rare instance where I do have a garage sale, I'm even more thrilled that people are willing to hand me any sum of money in order to cart my junk away! Heck, I don't have to PAY someone else to take it. What a deal!

In your case, I suspect you like the slipcover a heck of a lot more than you like the couch. I recommend you KEEP the slipcover and get rid of the couch. You can use the slipcover on your new couch to keep it looking newer longer.

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"I've been rich and I've been poor but independently wealthy is where it is at."