I used to do this more often, but I find the gap is narrowing a lot. Most of the time I find I don't save enough to justify getting it in two weeks over 1 day.
Now all the 40 cent items cost $2, and have $3 shipping. Or you can buy the same thing on Amazon for $6. Their search also used to be a lot better, today it's worse than Youtube search.
Cannot even imagine 1 day.