I been vlogging for over a year now. One thing i got good feedback on from friends and strangers that.
In the beginning of the vlog, make sure you make it clear to the audience on what you are doing today. Give them the agenda. Dont just fly places to place.
Example:
"Hey guys Today i am going to the store to get some meat, because later on the day I am going to have a bbq with friends."
now the audience have a good way of knowing what the video will be and its really helps them understand what places and things you are doing.