Perfect? That would be something different for everyone.
Here is approximately what I plan to take on my upcoming US Southern Tier:
Toiletries Category total 5.9 oz.
Toothbrush 0.7 oz. Small travel model
Toothpaste 2 oz. Sample size tube
Microfiber towel 1 oz. 12" x 16" Replaces full sized towel
Toilet paper 0.2 oz. A few sheets
Liquid soap 2 oz. Baby shampoo, camp suds, or any sample size shampoo
Shelter and Sleep Category total 4 lb. 10.7 oz.
Tent 2 lb. 9 oz. Eureka Spitfire 1 Replace 8 heavy stakes with 6 MSR Needle Stakes
Sleeping bag 1 lb. 1 oz. Mountain Hardwear Phantom +45
Sleeping bag liner 4.7 oz. Cocoon silk mummy
Sleeping pad 12 oz. Thermarest NeoAir (regular)
Cooking & Eating Category total 9.4 oz.
Stove 2 oz. Pop can stove (with windscreen and pot stand)
Pot 6 oz. REI Ti Pot 1.7 liter
Utensils 0.8 oz. Guyot Designs MicroBites
Lighter 0.4 oz. Bic
Can opener 0.2 oz. P38
Clothes Category total 4 lb. 4.20 oz.
Bike shorts 0.0 oz. Pearl Izumi Ultrasensor Weight not counted because worn on bike
Tights 5.5 oz. Cheap ones with no chamois
Jersey 0.0 oz Short sleeved Weight not counted because worn on bike
Warm shirt 9.2 oz. Immersion Research Worn on or off the bike
Tee shirt 4.7 oz. UA Heat Gear Worn off bike
Down vest 12 oz. Cabelas Used as pillow
Bike hat 2.5 oz.
Cap 2 oz. Warm
Rain jacket 7.5 oz. Sierra Designs Worn on and off bike
Rain pants 7.5 oz. Sierra Designs Worn on and off bike
Running shorts 3.9 oz. Nike DriFit
Bike shoes 1
pr. 0.0 oz. Sidi Mega Giau Weight not counted because worn on bike
Crocs 1
pr. 9.4 oz. Crocs knock offs with straps removed Worn off bike
Miscellaneous Category total 3 lb. 13.70 oz.
Lock 5 oz Small 4' master cable lock
Flashlight 0.25 oz, Pico LED Zipper Light
Knife 1.9 oz. Leatherman Squirt S4
Sunglasses 1 oz.
Maps 4 oz.
Wallet stuff 0.75 oz.
Sunscreen 2.oz.
Lip stuff 0.5 oz.
Insect repellent 1 oz.
Camera 2 lb. 7 oz. Olympus with spare lens, charger, memory, case etc.
Tripod 4 oz. Pedco UltraPod 2
Water bladder 0.9 oz. Platypus 1 liter +
Carabiner 0.6 oz.
Cord 45' 170# 0.8 oz.
First aid and gear repair Category total 3.0 oz.
Ibuprofen 6
Benedryl 6
Bandaids a few assorted
Alcohol pads 4
Gauze pads 4
Bactericide 1 Small packet
Steri-strips 1 sheet
Needle and thread 1
Duct tape a few feet
Bags and packing stuff Category total 1 lb. 1.1 oz.
Ultralight backpack 10 oz. REI Flash 18 Used as main bag on rear rack
Handlebar bag 4 oz. Home made bracket to hold camera bag and stuff sack
Stuff sacks 3.1 oz.
Gear Total 15 lb. 0 oz.
Bike 25 lb. Including blinkie light, tool kit, pump, rack, handlebar bag bracket, and bottles and cages 25 lb.
Grand total including bike, gear and tools 40 lb.