The small container of Cedarcide's Best Yet product is listed on this website:
http://www.cedarcidestore.com/catalog/item/3580888/5087374.htm
They also sell a pack of 2 for $15.
We bought gallon jugs and refill the small sprayer as necessary. We live in the woods and use it as a repellent. When we fogged our house, it did seem to have a residual effect.
We didn't react to the bites until 7 days after the first bite, so it doesn't help to just look for bumps. As TNDISLVR found out, bumps can be from many different things. Look on your sheets each morning for small spots of blood and black marks like they were made by a small marker (feces spots). These are the telltale signs of a recent feeding.
We looked by the headboard and mattress seams in our affected room and didn't see signs of them so we thought we were safe. Now, after the seam check with the sheet off, I pull the top mattress at least 1/2 way off the bed and look on the box spring. Box springs are their favorite hang out. Again, look for the black marker like stains. Also look on the floor around the bed. They often use the feet of the bed frame to crawl up into the bed. They also like to hang out under the box spring, so check the bed frame under the spring as well. Behind headboards is another favorite spot.
If you see evidence of them, change rooms. They hide during the day and only fogging (not just misting) will get them under control. It may take a few days of treatment since even the fogging may not kill all the larvae. The larvae are sticky translucent ovals longer than a grain of rice. Since they stick so well, it is easy to transport the larvae on clothing or bedding.
I keep a block of cedar that I bought from Walmart in the laundry/closet organizer area of the store in my luggage and resoak it with Cedarcide periodically to revitalize it. I'm hoping this will increase the residual effect in our luggage.
I hope this helps some people avoid these pests on their future travels.