May I suggest next time the grape-squishing method?

1. Add detergent to bathtub, draw bath to about 1/3 full.
2. Plunk laundry in tub.
3. Agitate clothes with feet. If you do this while yodelling, hotel may elect to do laundry for you for free, just to stop complaints. Meanwhile....
4. Rinse; repeat 3 and 4 as necessary.
5. Extend travel clothesline across tub/shower stall, wring and peg items thereon.
6. If clothes still not dry, use hairdryer (frequently provided) to finish job.

Those beribboned things others mention have frequently been dry-cleaned, not laundered as I understand the term. The sole time I had this done, item came back reeking, and I mean reeking, of whatever toxic chemical had been used in the process. I'll choose DIY anytime (or better yet, if time allows, a laundromat.)

Note: If your hotel room lacks a tub, a couple of jumbo sized Ziploc bags works in a pinch. Insert item into one, add warm water and tiny amount of detergent, zip up bag, agitate; use other bag for rinse water. This works best with the old style pinch-close bags, not the fancier zipper style.