I don't know if this schedule still rings true, but I found it on another forum. I DO notice that the kids' clothes get marked down on Mondays, though, so that part is true for where I live!
Target Markdown Schedule (weekly & Holiday)
WEEKLY:
Monday: Electronics, Kids clothing and stationary (Cards, gift wrapping paper, etc.).
Tuesday: Domestics, women's clothing, pets and Market (food items,etc).
Wednesday: men's clothing, toys, lawn & garden, health and beauty items.
Thursday: House wares, lingerie, sporting goods, shoes, music, DVDs, books and luggage.
Friday: Auto, cosmetics, hardware, and jewelry.
HOLIDAY:
All holidays except Christmas follow the 3-3-2 rule:
The first 3 days after the holiday are 50% off.
The next 3 days are 75% off.
The next 2 days are 90%.
After that it goes to salvage.
Valentines 3-3-2
Easter 3-3-2
4th of July 3-3-2 (since it's always on July 4, the schedule stays the same)
July 5 = 50% off
July 8 = 75% off
July 10 = 90% off
Halloween (since it's always on Oct. 31, the schedule stays the same)
Nov 1st = 50% off
Nov 4th = 75% off
Nov 7th = 90% off
Thanksgiving 3-3-2
Christmas
For the best deals, get there early the day of the markdown. And be sure to make liberal use of the in-store scanners to find deals that haven't been otherwise marked...that's another Target retailing puzzle that can work in your favor.
- 6 - 3 
- just turned one!
No one can go back and make a brand new start. Anyone can start from now and make a brand new ending.