Denise - bow first is an option if conditions are extreme, but I'm not the owner (shared/fractional boat through SailTime) and the preferred way to leave the boat is stern-in. All my practice has been backing in, so I'm actually more confident going stern first at this point.
Rob - lines are stored on the boat. As mentioned above, not my boat, and there aren't enough spare lines aboard to be able to tie up elsewhere if I leave lines on the dock.
Barquito - a line at the mid-ship cleat is a great idea. I forgot I did exactly that in October last year when the winds were high and had my crew member use that line instead of the bow line when stepping ashore. I'll remember that for next time, and also remember to clearly communicate to anyone on the dock that I want them to take THIS line please, not the stern line, and tie it to THAT dock ballard.
I would suggest leaving the lines on the dock and putting a spare set in a carry on bag that you can take home with you, OR... ask the people at the company why they could not spring for a back up set and leave the lines on the dock like most folks do?
Even if you leave lines on the home slip it won't help you docking someplace else. Here is what I do when docking with lines on board:
It's called walking the dog
I take a spring line attached to the boat near the shrouds and a bow or stern line (depending on the situation) with me as I step off the boat onto the dock. All I really worry about is getting my boat to a stop or near stop so that I can safely step off from the cockpit or amidship. When I stop off I have both lines in my hand. I then walk the boat forward or aft to the position on the dock where I would like the boat to stay.
The spring line stops the boat from any further motion and pulls the beam to the dock. If the beam is snug on the dock, obviously, the bow and stern cannot be far off the dock. I tie off the spring line slightly for or aft depending on wind or current. Then tie off the bow or stern line.
You will find that unless the wind is blowing directly over your beam pushing you off the dock that you have one lazy dock line, either the bow or stern. You just have to figure out which one should be lazy before you dock and that is the line you don't take with you (bow or stern) when walking the dog.
If the wind does happen to be blowing the boat off the dock then the spring line can be tied off nice and short, 90 degrees off the beam doing most of the work for you.
Now can someone please tell me how I can easily single hand my boat into a slip that requires a stern in tie up with four pilings and no floating dock?