1. If you're visit to Tokyo doesn't happen to coincide with one of the year's three sumo tournaments, it isn't all bad news. Situated beside the city's Kokugikan Stadium is the city's Sumo Museum. Exhibits include pictures of the all-time greats and various bits of memorabilia. Open Mon-Fri from 10am-4.30pm.

2. If you venture down to Harajuku on a Sunday, don't stop once you get your photo taken with the girls on the bridge. Keep on walking, past the teddy boys showcasing their moves, and on to Yoyogi Park. Chill out for an afternoon watching people skinny dip in the lake, others play frisbee and budding musicians jamming in every corner.

3. For a bird's-eye view of Tokyo you don't need to fork out lots of yen. Instead you can visit some of the city's skyscrapers which have free observation decks. Two of the city's best are the Tokyo Metropolitan Government Offices (Nishi-Shinjuku 2-8-1, Shinjuku) and Tokyo Big Sight (3-21-1 Ariake, Koto-ku).

4. Rather than buy individual drinks to give you some Dutch courage in a karaoke booth, ask the person at the desk for the 'unlimited drink' option. With this you pay around US$14 for the booth for an hour and as much drink as you want! This includes beer and shorts too. Your friends won't be able to get you off the mic!

5. While the Imperial Palace is only open twice a year, members of the public are allowed wander around its gardens all year long. Inside you'll also find a museum housing Emperor Showa's art collection. Open daily except Mon and Fri; admission free.