I was out and about 4 days after my section, we just took it really slowly and I found leaning on the pushchair helped.
2 weeks and 5 days later I can do light housework (put washing in the machine, do washing up, that sort of thing) but I still tire really easily, and I am still following the advise not to lift anything heavier than baby.
But seriously, rest while you can, and don't overdo things. I did and crashed big time a week after my section, I was a blubbering mess for a couple of days and I stayed on the sofa having skin to skin with LO, I should have been doing that before. So even now I only plan one visit/outing per day otherwise it gets too much.