I have never printed at home. I simply do not print enough to justify it, although I have considered doing more.

So, for someone that prints occasionally at external labs (usually the former Adoramapix, now called Printique), I print one album (~200 prints) of 4x6's once a year. This is for my Grandfather-in-law. It started off as a way to get him an assortment of my family photos but has morphed into a "best of" collection for each year.

I've printed the same for myself a few times.

As for larger prints, the largest are 24 x 16. I have moved from printing on paper to liking metal prints. I worry more about 150 ppi, but try for 300 ppi.