The problem is now that we're all working from home i can't Nick any from the stationery cupboard? (y)
Agreed - though if you're going to have "nicer" paper, there's little point going for 80gsm as the difference will be barely noticeable. I'd invest in 90 or 100gsm if impressionable print was required.
Most standard office printer paper is 80gsm. This will be great for most uses but may feel thin, so you may wish to keep some standard 80gsm paper in the house for the times you need to create a better impression.