Here is the coupon insert schedule for 2008.
It would be a good idea to bookmark this post so you'll have it handy when needed.
SS = Smartsource
V = Valassis
P&G = Procter & Gamble
January 2008
6......2 SS - 2 V
13....2 SS
20....SS - V - P&G
27....SS - V
February 2008
3 .....SS - V
10....SS - V
17....SS - P&G
24....SS - V
March 2008
2......SS - V - P&G
9......SS - V
16....SS - V
23....no inserts (Easter)
30....SS - V
April 2008
6......SS - V - P&G
13....SS - V
20....SS - V
27....SS - V
May 2008
4......SS - V - P&G
11....SS - V
18....SS - V
25....no inserts (Memorial Day)
June 2008
1......SS - V - P&G
8......SS - V
15....SS
22....SS - V
29....SS - V
July 2008
6......no inserts (4th of July)
13....SS - V
20....SS
27....SS - V
August 2008
3......SS - V - P&g
10....SS - V
17....SS - V
24....SS - V
31....no inserts (Labor Day)
September 2008
7......SS - V - P&G
14....SS - V
21....SS - V
28....SS - V
October 2008
5......SS - V - P&G
12....SS - V
19....SS - V
26....SS - V
November 2008
2......SS - V - P&G
9......SS - V
16....SS - V
23....SS
30....no inserts (Thanksgiving)
December 2008
7......SS - V - P&G
14....SS - V
21....no inserts (Christmas)
28....no inserts (New Year's)