Do you mean groceries or clothes or other stuff MissA?
I sometimes get an online delivery from Waitrose if I need a lot of things, say if the family are coming, but otherwise I like to go to the shop as it's only a mile away, I can get a free coffee and probably bump into someone I know.
The website is quite easy to negotiate, but you have to watch out how things are sold - for example it's not difficult to accidentally order 1 kilo of something, instead of a single item . You can book a time slot so you know when they're coming.
I get clothes from lots of different places - John Lewis, Uniqlo, Toast, Boden. The advantage is that you can try things on with stuff you already have to see if it works, but it's not quite the same as wandering round the shops actually looking at things.
If I know I want a particular item, like a storage box from Lakeland Plastics, shopping online saves all the faff of going into town and locating the item in the shop, so it's a clear winner.