Regarding clothing steamers, I had the opportunity to use a professional grade one once and it was fabulous. Later I bought one for home use that had good reviews, but it was useless. I was hoping to use it on dress shirts, but no such luck. Buyer beware, I guess.

Steamers have the ability to do a better job than irons at getting wrinkles out, but it depends how much steam they release and how hot the steam is. To date, I have yet to find a portable steamer that does a respectable job on cotton, though I can't speak specifically about the Taotronics steamer. My brother & SIL have a Reliable Vivio 100GC Steamer & that thing is beyond amazing. Perfect, wrinkle-less fabric every time -- but its retail price is $150 (they got theirs on sale, but I think it was still at least $100).

Is there odorless fabric softener? I have asrhma

Liquid Downey Free is made without any fragrance or dyes. Nothing is completely odorless, but I am hypersensitive & it doesn't bother me.

Interesting. I hate having to iron fabric I've had in storage in order to get it unwrinkled enough to run through my Accuquilt Go! I already use Downy Free liquid fabric softener (along with All Free, as my dh has lots of allergies). Could I simply mix Down Free half-and-half with water, spray it on my fabrics, and toss in the dryer for a few minutes to eliminate the ironing? I know the original question was for quilt backing, but now I am wondering if I could save myself some work when cutting out pieces.......

Yes, this is exactly what I do and it works even with wide back just off the bolt and very wrinkly

The hardest crease I find to remove, is the fold down centre of fabric. Could these methods ie. spray and toss in drier.?
unfortunately can't try it as my drier is broken hence the question..