The good news is that all the shops will have sales on during January. The bad news is that the dollar is getting creamed by the pound, as well as the euro, yen, etc. The best British-made RTW is Chester Barrie, which apparently also makes the Hield line. These two companies have shops basically next door on Savile Row, or at least did prior to Barrie's recent filing for reorganization. Barrie clothes are also available at Harrods, and used to be available elsewhere. I don't know if either Barrie or Hield has a sale in their shops, but I would think they likely do. However, many of the better Italian RTW brands are also available in London, including Brioni (Brioni store just off Bond St. and at Beale & Inman on Bond St), Kiton (Harrods, perhaps one of the Herbie Frogg locations), Belvest and D'Avenza (both at some menswear store on Bond St, but I don't recall the name), Isaia (at least it used to be available at a Herbie Frogg store on Bond St, but which is now perhaps the Canali store -- Frogg may now have it elsewhere). Plus, I thing Corneliani has a store on Bond St, as does Zegna and the aforementioned Canali. All should have items on sale in January. The Gordon Scott store will almost certainly have a bunch of C&J's on sale, including Handgrades, plus some Grenson Masterpiece models. Also, be aware that the C&J stores are quite likely to have some of the same models on sale, and perhaps others. Further, C&J makes many of the shoes now sold at Foster & Sons on Jermyn St, some of which may be on sale as well. Of course, you must stop by the Edward Green shop; you might be able to get a pair for prices comparable to the C&J Handgrade sale prices. If nothing else, try some on to establish your proper size and preferred last for future reference. If you hang around here long enough, you end up wanting some Greens at some point. Also, see if Lobb has a sale at their Jermyn St location. As mentioned by Ernest, try out the Hilditch & Key shirts, which are superior to the brands you've bought and which are quite a good deal during their semi-annual sales. Perhaps also check out Budd (Piccadilly Arcade) and Turnbull & Asser.