Walk around the block and avoid the cheese in the fridge
I worked from home when the company got too big for the offices, and then stayed at home whilst the company was merged 100 miles north.
The fridge was a major distraction - as Mayor Boris commented the temptation is always to nibble at the bit of cheese therein.
Did I feel cut-off? Yes, despite being on the phone over half the day. I ended up going in to the office one day a week to compensate.
The commute had been an hour each way so I did an hour extra when at home - seemed fair at the time.
Not commuting also blurs the break between home and work - I had to walk around the block after working at home otherwise I stayed in work mode all evening!