I seem to do this often, and I get really annoyed as I shop online and pick it up each week.
For some reason I always seem to run out of important things like milk and have to go again to the shops.
When I actually go into a supermarket I buy all sorts of things that I did not go in for, and hence I am better off shopping online -I should not really run out as I do the order as soon as I need something, but I do run out or need something for a recipe.
I do sometimes need a 2nd loaf of bread. Now I keep a spare in the freezer. It's not me who needs to go shopping more than once a week; it's my husband who likes to go & look at 'what's on special' (Yes we do pick up the 'special's' catalog every week!!!)
(Only at Aldi's) I try & go only every 7 days!