Jot them down in your calendar: there will be a jumble sale this coming 5th April and then on the 3rd May, 7th June, 5th July, 2nd August, 6th September and 4th October 2015.
Even though there is some construction going on and the whole of Place Guillaume II cannot be used, there are still 170 spots for the jumble sale. As work progresses there will be more spots available.
Currently the 170 spots are all reserved, but it is possible to sign up for a last minute spot to sell your belongings. It is really easy, just contact the Service Fêtes et Marchés de Luxembourg during the week preceding the jumble sale in which you would like to take part. The numbers are: 47 96 42 99 or 47 96 42 96 and there is a fee of 5 euros per spot.
Fancy going? You should know that the town’s buses are free on the Sundays of the jumble sales and Sunday openings, and there a bus shuttle will be organised.