In the past when I had used only fs, I had experienced spotting on my clothes (seems like I had read on here where that can be the reason). Then I began using 1/2 fs and 1/2 vinegar which seemed to lessen the spotting. When I ran out of fs and didn't have enough to buy it (can you believe how pricy it is!), I just went with vinegar only.
Now today I've done a couple of loads and the spotting is back! I've still been using a dryer sheet for some softness; do you think that is what's going on? Thanks for any info!