For Trains: I specifically made a second post detailing brands we frequently use. Hopefully that will help and make me an easy train rider. :)
Feel free to PM me if you want to trade and aren't sure what to trade. :) I don't bite!
I can double or triple up to 99¢, but can not use expired coupons. Internet Printables are fine with me, just check first so I know it is an IP. :)
What I need the most! 
- Papmpers Points and Coke Codes.
- Weight Watchers Coupons (except cheese), I am perpetually dieting.
- Free WYB: I generally like Free Milk WYB Cereal, Free Bananas WYB, Free Produce WYB, Free Meat WYB, etc.
- Store Coupons: including Gymboree, The Children's Place, Target, CVS $/$, Babies-R-Us (especially the % off clothing/items or $5/$25), Toys-R-Us, Bath & Body Works and Fashion Bug. These are very high on my list right now as I get ready for a flurry of birthdays and new babies.
- Coupons that can triple - I live near a Harris Teeter that is tripling for 6+ months, so any coupons 99¢ and under for brands I use are usually a good bet.
Internet Printables
$1/5 Weight Watchers Smart Ones -
Coupons.com Printable
$1/1 Bird's Eye Voila -
Coupons.com Printable
75¢/1 Oscar Mayer Deli Fresh Singles 2-pack -
SmartSource Printable Very Best Printables: $1/1 Stouffer's Family Size, $1/1 Nestle Toll House Cookie Dough, 55¢/1 Nestle Tell House Morsels, $1.50/1 Purified Bottled Water
50¢/1 Lunchables Jr -
SmartSource Printable
75¢/1 Gerber Graduates Bakery Item -
eCentives Printable
75¢/2 Gerber Graduates Items -
eCentives Printable
50¢/2 Gerber Fruit or Veggie Dices -
eCentives Printable
75¢/1 Gerber Little Entrees -
eCentives Printable
$1/1 Gerber Fruit Splashers -
eCentives Printable
$1/1 Gerber Fruit Splashers -
Gerber.com Printable
50¢/1 Gerber Li'l Sides -
Gerber.com Printable
55¢/1 Fruit Puffs -
Gerber.com Printable
$1/1 Mini Fruits -
Gerber.com Printable Coupons:
$1/2 any Post Cereals
$1/1 Post Just Bunches
75¢/2 Kraft Crackers or Nabisco Cookies
25¢/1 Puffs
35¢/1 SoftSoap
50¢/1 Dawn
75¢/1 Aquafresh Premium Toothpaste
$2.00 off WYB (all the Kellogg's ones that came out)
Gerber Graduates (50¢/1 or 75¢/2 ONLY - do not need $1/2 or $1/3 etc)
Tyson Chicken
Cereal Coupons (off 1)
Bird's Eye Steamfresh (must be able to be doubled)
Frozen Pizza Coupons (Red Baron, CPK, Tony's, Tombstone or Digiorno)
Ore-Ida Frozen Potatoes
Hebrew National Hot Dogs (VERY brand picky on these)
South Beach Products (ONLY wraps, chicken salad and sandwiches, once in a blue moon I will need others)
Weight Watchers (frozen dinners, snacks and especially frozen treats)
Store and Restaurant Coupons 
Stores I Shop At:Baby Depot
Babies'R'Us Bath & Body Works
Belk
Claires Costco
CVS Food Lion
Gap (sometimes, not on my list of favorites) Gymboree Harris Teeter
JC Penney's Kohl's Lane Bryant, Fashion Bug Lowes Foods
Macy's Old Navy (sometimes, not on my list of favorites)
Payless Rite-Aid
Sears Sams
Target
The Children's Place
Toys'R'Us Walgreens
Restaurants:
Carrabbas
Cheesecake Factory Chick-Fil-A (love to take my daughter to the playplace) Chili's
Coldstone Creamery
Cracker Barrel
DQ (Blizzard Qs only)
Mickey D's (always looking for breakfast or kids coupons) Olive Garden Outback
Pizza Hut
PF Chang's
Red Lobster
Romano's Macaroni Grill Ruby Tuesday
Sonic
Texas Steakhouse
TGI Friday's Uno Pizzeria