I have no idea of what kind of chair you want. The Jungle (which is now closed) used to have that stuff. I believe the teak house doesn't carry that kind of stuff. Your best bet might be the big antique place which is between Paradara and Tanki Flip. Basically go the texaco station by Lings - take it to the circle - go 'straight' following the signs to paradara - it is a bit place with an Onion dome. It is not cheap.
Clothes - depends on what kind of clothes you want. Main street in town (2 blocks in) has all the 'chains' for clothes.