I thought I did a lot just in my normal day to day business until I got a cheap fitbit!
I set mine for 10,000 and make sure I do them every day which is easy at weekends but harder in the week as my job is busy but can leave me chained in one place during the day. I've added in walks before and after work to hit the target.
It's made me wonder how many people try to average in a day.