If you anticipate it's going to be a long term issue of lack of time, I would invest in a smaller pipe. Smoking half bowls often in a pipe could lead to cake issues and charring of the upper half of the bowl. YMMV.
Smaller bowl. I carry for the working day a 18mm inner diameter bowl, for lunch break or to squeeze a coffee. Easier to carry too. Most classic billiards have a bowl of 18mm, even smaller. To me, that's what a Dunhill billiard is for.
@martiniman : Basically yes except that in my experience I found it's better to knock the embers off and make sure it's out. Several times when I just let it go out ( or so I thought ) I came back an hour later to find it had all smoldered off to white ash :|
6 of one - half dozen of the other. I believe it is a personal choice. Some ppl don't mind letting a bowl go cold and re-lighting at a later time. I never cared for it. If I don't finish a bowl, I just dump er out and refill when I smoke again. Could be easier on the baccy stash if I could re-cycle but it is just not my game.
I have done all 3. I always have a small bowled pipe for super stout blends that I can't smoke much of at one time and they double as a quick smoke pipe. I have also loaded a half bowl in a larger bowled pipe but I'm not a big fan of it. I never seem to get a proper pack when I try to pack a half bowl. As far as letting a pipe go out and relighting it later, otherwise known as DGT (Delayed Gratification Technique), it depends on the tobacco. I have found that blends containing latakia usually get dirty and harsh at relight, Virginia/perique blends the same, aromatics can go either way, but straight Virginias...I DGT them on purpose sometimes because I love what happens to a Virginia when charred, allowed to sit for 2 - 4 hours or longer and then relit. I never dump ash. I just tamp it down and let it go out. Never had a bowl keep smoking on me. The Virginia go from sweet and spicey to deep, dark, roasted espresso and cocoa.