The biggest time sink as hand-in date approached was no-one’s fault but mine and it boiled down to indecisiveness about formatting. The classic procrastination was over labels on figure numbers. Do I choose “Figure 8: Classic picture” or “Figure 8 Classic picture”? Who cares really? It doesn’t matter that much. In that late-PhD fog though, I just couldn’t make up my mind and so I ended up with 40 figures with colons and 50 without. Changing that around at 1am was, to put it mildly, a drag. I wish I had given it a bit more thought and been brutally decisive very early on.
Similarly, references came back to haunt me. Wanting to push ahead I had paid a student to build up my database. Oh, what was I thinking? Using an undergrad student who didn’t know the difference between journal article names and journal names! Scary but true and pretty alarming to discover half way through your reference list.
TIP: Use willing students to help where possible in your research process but check their work!
The biggest time drain, though, was simply due to formatting a PhD size document. By the time I was finished my thesis clocked in at 353 pages. (That’s not untypical). A simple check on header formats would take an hour. Even adjusting and checking chapter headings took half an hour because there were 15 of them. Before you get too far into the document indulge in a day or two to choose formatting that really works well for you. And then stick with it.