I fold the sides in to make a neat rectangle, then fold it into thirds. The alternative is to fold it length-wise in thirds and then roll it up - this is great for small spaces or packing a suitcase. Hope this helps! Hugs, Holly

Here is a handy tool you can make to help fold. https://www.hometalk.com/41299898/shirt-folding-tool-konmarie-style

Shirt Folding Tool - KonMari Style!

Here's 4 ways!

https://www.realmenrealstyle.com/fold-t-shirt

Once you get the hang of the last method listed in this link, you'll amaze anyone watching you do this:

https://www.realmenrealstyle.com/fold-t-shirt/

I roll mine. Fold in half, top to bottom, then fold the arms in. Begin at the neck and make a tight roll. You end up having more shirts in the same space and I think they wrinkle less.

Rud...I fold the entire sides in about where the sleeves meet then up twice but they can also be folder sleeve to sleeve, fold sleeve in (even short ones) then roll from bottom up.

My daughter swears by this: https://www.whowhatwear.com/how-to-properly-fold-t-shirt. My own t-shirts are always in the laundry basket. ;)

Marie Kondo has it down pat..... https://www.youtube.com/watch?v=CB7aLywa4PQ

Here's a couple of videos showing different methods:

https://www.cityline.tv/video/web-extra-how-to-fold-clothes-using-the-konmari-method/

https://www.cityline.tv/video/3-professional-tricks-to-fold-your-clothing-and-save-closet-space/