I hardly ever rent a car and rely mostly on public transportation. During my latest visit, I went to the downtown bus depot and got a RTC transit card, for identification purposes, and as I'm a senior, the fares were $1.00 on the routes I took. I avoid the Deuce and Express buses, wherever possible, as they are far more expensive. I use the Westcliff bus from Fremont to the airport, quite often as well. It runs about every 20 minutes and it's pretty quick.
The shuttles are great between the Boyd properties and the strip. I often stay at Silver Sevens and get a courtesy shuttle to and from the airport and the strip, as well.
The entire trip from September 4 to 11, I probably spent under $5.00 on transportation. I just planned my trips using the local bus system and did a fair bit of walking. It meant more of my trip budget was used for food, and gambling!!