I use a Walgreen's brand for evenings/bed where I can get to the john in time. Usually a clean one when I go to bed works through the night. Day-times, I use a more form-fitting Depends for Men with a added liner. This lasts about 4-5 hours. I do lots of sitting in my work (computer and piano playing) and sitting seems to be a block for me, a good thing, until I stand up. People always ask how come I don't talk a break playing a three hour piano bar. My wife is the only one who knows. So, day-time, probably about 3-4 changes.