Starting 2011 off with a Budget

We have a family of four with one on the way. I have no idea what our monthly grocery bill should be so I am going to guess and then reevaluate next month. We are starting off with a $300 budget. I am hoping this is going to be way to much; especially with my couponing helping out.
I am most likely not going to do the best job of documenting what I buy, when I buy it. Here is the what we have purchased from January 1st to January 11th.
Walmart 1/6/11
bacon
hamburger buns
Total:$5.01

Walmart 1/6/11
meat log
clem. oranges
Total: $8.99

Walmart 1/8/11
2pks hotdogs
jumbo shells
bell pepper
raisin bread
bagels
oatmeal cream pies
4- 4pks GV yogurt
flour tortillas 24pk
large parm. cheese
ham/hotdog buns -1 each
Total: $34.71

Walmart 1/8/11
WIC Items
2 rice crispies
2lb cheese
eggs
3 lactaid
Total: $22.84-FREE

Fresh Market 1/8/11
WF cereal
powdered doughnuts
cocktail smokies
2 hickory farms logs
Total: $22.41

Costco 1/8/11
Box Bakes chips
craisins
tortilla chips
Total: $15.94

Costco 1/8/11
2 berry smoothies
Total: $3.13

Smiths 1/11/11
24 ct Charmin TP
2 Febreeze air spray
crest tooth paste
4 wholly salsa
4 eye shadow
Total: $10.36
Refund: $6.58
New Total: $3.78

RiteAid 1/11/11
8 boxes Special K cereal
3- 80 ct Halls drops
Breathe Right strips 10 ct
Blink Tears
Total with coupons: $12.91
Paid with 2 gift cards=FREE

RiteAid 1/11/11
Blink Tears
Christmas candle
3 rolls wrapping paper
Total with coupons: $.98 (only tax)
Paid with gift card= FREE

Both RiteAid totals have SCR for $7.99 each. I'll add that money back into my budget when I get it. Hopefully, I'll be able to grow our storage and buy our weekly meal necessities with the $300 this month. I will also be including any eating out into this budget.
So the total for this post is $93.97. Not too bad!

Here's to being accountable and hopefully adding to our savings.