This past Saturday was a real treat for me.  ¹Perhaps best was that I was able to do several of my favorite things, including sleeping in, shopping, and to eat out at a nice restaurant.  ²It was great to get up late on a Saturday morning for once, sometimes I feel like I never get to do that anymore.  ³Shopping too.  ⁴Its a pleasure when you have time to really browse for what you want, and I did find the perfect chair for my office.  ⁵Of course, I topped it all off with a visit to Damon's, they have the best garlic prime rib I've ever tasted.  All in all, it was a perfect Saturday.

1. error: parallel structure

fix: Perhaps best was that I was able to do several of my favorite things, including sleeping in, shopping, and eating out at a nice restaurant.

2. error: comma splice/run-on

fix: It was great to get up late on a Saturday morning for once.  Sometimes I feel like I never get to do that anymore. (May also use semi-colon, colon, or comma w/ conjunction.)

3. error: sentence fragment

fix: I really enjoyed my shopping too.  (May be combined with sentence following: Shopping is also a pleasure when you have time to really browse for what you want, and I did find the perfect chair for my office.)

4. error: apostrophe for contraction of it is

fix: It's a pleasure when you have time to really browse for what you want, and I did find the perfect chair for my office.

5. error: comma splice/run-on

fix: Of course, I topped it all off with a visit to Damon's; they have the best garlic prime rib I've ever tasted.  (May also use period, colon, dash, or comma w/ conjunction.)