I am still quite new and I thought about it beforehand and I brought one of those flat menstrual cups because they are designed for it. They are great when you have a bit of heavy spotting but once the full flow came in, it was useless. I don't think it fits every woman very well....so that was £24 down the drain.
I took the heavy days off last month and this month coincides with my holiday but I am still unsure about next month, maybe I will go the sponge and black condom route. My ex used a menstrual sponge and found it really effective but I doubt I will fancy working on the two heavy flow days anyway as I am just too uncomfortable (I tend to bloat REALLY badly). x