I swap out blocks, fabrics, FQs, charms all the time, and when I receive from others it doesn't matter to me if they smell like cigarette smoke or dog body odor because this is Petty.
Fabric can be washed, if it can't be washed then send it out to get Dry-Cleaned. If you can't get it Dry-Cleaned, then it's not meant for trading out.
I'm a smoker and I have a cat.
I DO try NOT to send out with cat hairs clinging or smoke drenched fabrics.
I'm not here to complain either, I enjoy the swaps because it's a learning and bonding process.
Learning because the pattern process or trying out a new skill or technique, and sometimes critiques are good for one, because we are not PeRfEcT, we are here to excel only.
Bonding because we make friends, accept others, help others, and accept constructive criticism.