Watford is served by the M1 and M25 motorways and is 20 minutes away from London by train. The Metropolitan line of the London Underground serves Watford and tube trains to Baker Street and Liverpool Street run approximately every ten minutes.
Frequent coaches serve Watford town centre from Heathrow Airport (Bus 724, 45 mins) and Luton Airport (Bus 321, 1.5 hours).
Most attractions in Watford are within walking distance of each other and do not require buses or trains.
It is worth noting all Hertfordshire buses offer an 'Explorer' ticket which permits a maximum of 2 adults, 2 adults and 2 children or 1 adult with 3 children to unlimited travel for £7. It is often worth doing as it can save money even if you are on your own.
The Harlequin is the main shopping mall with John Lewis, Jane Norman, French Connection Outlet, Monsoon and separate Accesorize in addition to Acessorize in the Monsoon, River Island, Anne Summers, La Senza, Zara, WHSmith (post office at the back), Pineapple, Lush and many other shops. There is also New Look, Topshop (inc Topman), Computer Exchange, The End and Next to Choice (a Next outlet) on the High Street.
There are many choices.
For Restaurants, there is Que Pasa, Flower Drum (chinese), Flame (chinese buffet), various Pizza restaurants (Pizza et pizza, Zinco, Ask, Pizza Hut, Pizza Express), Caribbean, Japanese (Hanko)...
Fast food - Two Macdonalds, Burger King, two Subways, various pizza takeaway places (Dominos, Pizza hut, Pizza express, various kebab shops... I would highly recommend Roosters Peri Peri chicken. It's halal and serves very inexpensive but absolutely delicious chicken meals, including wraps, burgers, etc and even apple pies and ice cream in the summer. Try the chickenburger meal. Yum. For a sit down, go to Pepe's, opposite the indoor market (behind Poundland) which serves Greek Cypriot fare as well as burgers, steaks, sandwiches, puddings etc.
Halal - Roosters (burgers, chicken wings, chips...), various kebab shops.
Cafés - Presence coffee shop with paninis, muffins, with a spa upstairs and a gift shop out front. TJ Hughes has a restaurant/café, as does BHS. For the more traditional fry up, head to Aroma at the bottom of the high street for relatively healthy and delicious breakfasts, chips, burgers etc. Toast, next to Roosters and almost opposite the Palace Theatre, serves sandwiches, juice etc. Try Go Kula cafe on Market Place for vegetarian food but it is a bit hit and miss. Best to go there for a chat, read a few books and meet the local mums and toddlers. The YMCA serves good food - it is behind Poundland/next to the indoor market.
Coffee Starbucks and Costa in the Harlequin, Caffe Nero by St. Mary's Church on the High Street, Presence in the north end of the High Street, McDonalds on either end of the High Street... Plenty of places with plenty of choice.
Watford Town Centre comes alive at night particularly on Mondays, Fridays and Saturdays. The bars and clubs are practically all positioned next to each other up the High Street. As a general rule the music is louder, the drinks are more expensive and the atmosphere is more lively the further up the High Street you go, though there are exceptions.
A flyover divides the strip into the 'High Street' and 'The Parade'. Starting from the High Street and walking up:
Premier Inn, Hilton, Park Inn, Travelstop, The Grove (tres expensive but tres beautiful), Travelodge x2, Holiday Inn Express... Expect to pay around £70-80 to stay in the brand names. For B&B stays, try Berry Grove Lodge (01923 218015), The Orchard House Guest House , Ricky Road Guesthouse .
Trains to Tring, Hemel Hempstead, St Albans (a definite must visit for the market, the cathedral, the park and the canal), Aylesbury, Bletchley, Birmingham, Milton Keynes, Leighton Buzzard, Brighton etc etc etc are also available.
Take the Metropolitan line from a secluded tube station after a walk through Cassiobury Park to Baker Street, Harrow, Wembley... And change at Baker Street for various other London lines and of course to visit Sherlock Holmes's offices. Change at Moor Park to go to Chesham, Amersham and Rickmansworth, lovely large villages with much to offer.