Listmania!
Tools To Make It To 10 Years Of Marriage
By an Amazon.com customer

Could be handy for those times when you really step in it bad.
When Harry Met Sally... (Collector's Edition)When Harry Met Sally... (Collector's Edition)
Buy new: $10.49 / Used from: $2.20
Required viewing - you must master these quotes. Pulling the right quote out at the right time could save your life.
Post-it Notes 3 in x 3 in Canary Yellow, 100 Sheets, 24-Pad PackPost-it Notes 3 in x 3 in Canary Yellow, 100 Sheets, 24-Pad Pack
Buy new: $31.80
Use these to write love notes and leave them everywhere. Or, more likely, use them to write apology notes, and leave them everywhere.
Mudlark Stationery Collection - IbizaMudlark Stationery Collection - Ibiza
Buy new: $20.17
For those times when an apology note on a Post It simply won't do. See also the Jewelry suggestion.
Chicken Soup for the Romantic Soul: Inspirational Stories About Love and Romance (Chicken Soup for the Soul)Chicken Soup for the Romantic Soul: Inspirational Stories About Love and Romance (Chicken Soup for the Soul) by Jack Canfield
Buy new: $10.17 / Used from: $0.38
For a change of pace, try reading her something romatic. Yes it's cheesy, but it might just work.
Lafuma Warm n' Light 800G Down XL 35-Degree Sleeping Bag - Prusse (Right Zip)Lafuma Warm n' Light 800G Down XL 35-Degree Sleeping Bag - Prusse (Right Zip)
Useful for all those nights in the dog house.
Sharp YOP20HII 1MB Electronic OrganizerSharp YOP20HII 1MB Electronic Organizer
Technically, you should have every date of note - from your wedding anniversary, to the anniversary of the first time you held hands - etched into your brain, and easily recalled. If you're not lucky enough to have super human recall skills, better get an electronic organizer to remember all those "critical" dates.
Garmin nuvi 660 4.3-Inch Widescreen Bluetooth Portable GPS NavigatorGarmin nuvi 660 4.3-Inch Widescreen Bluetooth Portable GPS Navigator
Buy new: $499.95 / Used from: $139.99
She'll want you to stop for directions. You'll insist on driving around lost. Avoid the stress - and just get a GPS to tell you the way. That way, you can both be right.
XO Athletic Mens Athletic Supporters - Pro Cup w/Pro SupporterXO Athletic Mens Athletic Supporters - Pro Cup w/Pro Supporter
Buy new: $9.95 - $12.27
A little body armor could come in handy. Especially if you don't answer "does this dress make me look fat" fast enough or correctly enough.
Motorola Motofone F3 Unlocked Phone with Quad-Band GSM 850/1900--International Version with No Warranty (Black)Motorola Motofone F3 Unlocked Phone with Quad-Band GSM 850/1900--International Version with No Warranty (Black)
Buy new: $28.80
Avoid the "we never talk anymore" by being proactive. Make sure she's first in the address book, and on speed dial.
Soft and Warm Microfiber Fuzzy Socks in Your Choice of Colors: Champagne, Turquoise, Ivory, Smoke or Candy Cane Pink By Foot TrafficSoft and Warm Microfiber Fuzzy Socks in Your Choice of Colors: Champagne, Turquoise, Ivory, Smoke or Candy Cane Pink By Foot Traffic
Buy new: $5.95 - $7.95
Even though she's a mammal, her extremities can reach temperatures of near 0 kelvin. Protect yourself by getting her to wear these fuzzy sock slippers.
Romantic Weekend Getaways: The Mid-Atlantic States (Romantic Weekend Getaway the Mid-Atlantic States)Romantic Weekend Getaways: The Mid-Atlantic States (Romantic Weekend Getaway the Mid-Atlantic States) by Larry Fox
Buy used from: $0.01
Bribing her with a romantic getaway may not work every time, but it's certainly worth a try.
Yukon  Advanced Optics 3x42 Night Vision Waterproof MonocularYukon Advanced Optics 3x42 Night Vision Waterproof Monocular
Buy new: Too low to display
She's all seeing and all knowing - the least you can do is be able to see in the dark.