Where do you buy a gi from at a regular store? I don't see them on sale at K-Mart. Who carries them? I'm not the same shape as most (I'm tall and skinny), so "regular" gis are either too baggy or too short, or both. For that reason, I prefer not to buy over the internet. When I did judo a couple years ago, my sensei sold me (for cheap!) a brand new gi, but it didn't fit right; see above. BJJ requires a tighter-fitting gi, so my current gi doesn't work very well.
Maybe what I really need is an instructional on how a gi should fit.