Bed bug repellent or prevention?

I work for a home care agency providing services for 5-8 patients a day. The city I work in is having a huge bed bug problem. I want to do everything I can to prevent bringing bed bugs to my home or infesting other patient's homes. I avoid sitting, which is hard because I like sitting down and talking to my patients. Is there something I can spray on my shoes to repel the bugs so they don't hitch a ride with me? Any other advice for prevention would be appreciated. Thanks!