I crosscheck on bedbug sites, too.
I ask for early boarding on airlines since I need to wipe down the seats. I generally get priority/disability boarding for that, but some airlines are better than others. And some airlines are great, but the gate agents might be on a power trip. (My experience is generally good, but there's a gate agent in Detroit who got some not-so-lovely feedback to corporate.)
For hotels, I ask for synthetic pillows and a room in which no air fresheners or fabric refresher sprays have been used. If they regularly use those sprays, I ask if they have a room which has been vacant for awhile and for fresh bedding, including the comforter. I avoid small independent places because they're more likely to use Tide, fragranced detergents, fabric softener, tea tree oil, or lavender.