I've just come out of a writing-up period where I was doing easily more than 10 tomatoes a day. I'm back to normal work and have found myself in lit-survey territory again (searching for data in tons of papers in Mendeley...time consuming) and have seen my tomato levels drop.
Today I had a bit of a panic and decided to abandon the office and come home, so my tomato level has dropped even more and I'm only on 9 so far.
I've seen a lot of people aiming for 10 tomatoes a day and wonder how your days of work are structured? Obviously not everyone is full-time or sits at a desk for, say, hours a day (they may be in the lab and so 'tomato time' may convert so well), so how does the tomato count represent how much time you spent 'at' your PhD (either on-campus or working from home)?
I guess I'm just trying to get a handle on my time-tomato conversion rate compared with others - Again, obviously everyone's PhD is different and so you can't apply the same timescales to work, but I'd just like to reassure myself that the time I put in is equating to "hard work", even if my output/results may not show much!