I've had a think about it and stand by my original estimate, based on sixty years of adult life. Curtains and making of for a decent-sized room: ?750 3 rooms with curtains: ?2250 Curtains changed every 20 years Total ?6750 Blinds, per room (averaged for 1-2 windows) - ?100 3 rooms with blinds ?300 Blinds changed every 7 years. Total ?2550 Re-upholstery of occasional item of furniture: ?750 One item re-upholstered every 15 years Total - ?3000 One cushion/soft thing every other year: ?25 Total - ?750 Total ?13000. Allowing for inflation over the next 60 years.. roughly ?20,000 Obviously if you'd prefer shit curtains etc then you can cut-down somewhat on the above figures.