I'll agree with Jamie Z. After traveling alot on my ST1100 & ST1300's over the years, i like to think of packing on a bike like packing if you were to go backpacking for a couple day trip. You carry what you NEED and not what you want. I have narrowed it down very well, even when i went on a month long trip to Alaska in 2001.
Someone once wrote, to eliminate what you pack, take what you want on a trip, then once home discard items not even used. Write down items you needed while on previous trip you didn't have and then adjust accordingly next trip. By the third or fourth trip, you pretty much have it down to a science.
Think Micro!!! Thin Khaki pants pack tighter than Jeans do. In summer, many just wear shorts under riding gear, so one pair of pants are plenty for a trip of almost 2 weeks. While wearing one pair of socks, undies and t-shirt, throw in 2 additional then wash on the third day or so of travel.
If using coolmax and stuff, you can pretty much rince in sink at night, ring out with hotel towel, then air dry by morning. I have worn riding boots during day riding, then just packed a pair of sandles to wear at night, even if i need to wear pants.
For Camping, there are plenty of tents that sleep 1-2, but look for those that pack TINY (4-5" diam x 15-18" long with poles) without sacrificing weather protection. I use a sleeping bag that can roll into a 6"diameter by 8" long roll.
I ALWAYS LAUGH at the typical Harley weekend warrior / world traveler when they have gear packed higher then their own heads using garbage bags and bungees that look as if it could fall at any given time!!!
People do their own thing, but i still shake my head once on a bike trip when my father said he packed several pairs of shoes for a 4 day trip.