My backpack loaded (30lbs) up with everything I'd for a long distance backpacking trip rides in the trailer (35lbs) with the pup (65lbs). Basic tools/lock/tubes/everything I usually carry commuting is in the seat-pack and handlebar bag on the bike.
Took the rig on its maiden overnight trip the other day. 40 miles to the park, stashed the bike in the woods, hiked and camped, and rode 45 miles back the next day. It was surprisingly easy to pull the extra 130ish pounds using lower gears and spinning but I was absolutely beat by the time I got home.