We all have clutter, and sometimes selling that stuff is a great way to make a bit of extra money. But, as Unclutterer notes, sometimes it's just a time suck -- and you don't get as much back as you thought.
Photo by Marcin Wichary
So, they recommend setting a dollar limit to the stuff you're willing to sell:
I've set a dollar limit for myself; anything that I don't think I can sell for that amount or more gets donated rather than sold.
I used to think selling stuff for $20 or $30 was worth it, but between the time to sell it, the hassle of buying packing materials and dealing with the posting, I've found that my limit is a little higher than it used to be. Find where your sweet spot is and remember it -- you'll probably save yourself a lot of hassle in the future. Hit the link for more tips on selling your old stuff.