Citytrips. The most common way of traveling since public transport became so "cheap".

Although I don't entirely agree with that last word -it can be horrifically expensive too-, it's the perfect way of traveling in this always busy society. It's cheap, short and so much fun. It's like a little cultural bomb in the middle of our overcrowded agenda. You get to see wonderful spots such as buildings, museums or monuments, you hear a different language and you eat delicious foreign food.

Yet, what I love the most about it, are the little things. 

The feeling certain places or moments give me.
For example, the small research you do before leaving. Getting tourist guides at the library or booking your hotel while using Google Maps to make sure you'll be located in the city centre (because who wants to lose their precious time on public transport if there are so many options in the heart of the city?). It always fills me with excitement and thrill. I love having a trip I can look forward too, planning and dreaming about it.
What I also really like is being totally impressed by the beauty of a building. I'm a big sucker for special ceilings and floors (small anecdote: what I remember most of the Museo de las Bellas Artes in Sevilla isn't one of the paintings or sculptures, but the colorful ceiling in the main hall...).
Another little thing I love is using paper maps. I really enjoy the feeling of indicating places on it or planning where you're going to next, while waiting for your food at a restaurant.
Or the feeling of arriving at your hotel room after a long day of walking and exploring. Finally giving your feet the freedom they deserve, taking a relaxing shower, making plans for the next day while lying on the middle of the bed or re-watching the pictures you shot.
Also, having a small, light and cheap lunch -often the day's menu- in a little, cosy bar to have a bigger  meal at dinner, mostly a typical dish. Or the moment the cashier of the ticket-store tells me I get to pay a reduced entrance fee because of my student card, the moment I crack the code of the public transport-map, discovering a local market or getting the exact picture I wanted of that little spot.
These are the little happy-makers that always make my trips a big success, and I'm sure you really like them too.

Either way, there's just one thing I don't like about citytrips: how we all think about it.

We visit a city for a few days and we think we know it all. We think we've seen the entire town and we think we've truly experienced the local culture. Yet, we don't.
Every city, museum, monument, park, pub or restaurant is worth more than one visit. No, dear, you haven't see the Louvre because you were there for two hours. Neither do you know whether or not the restaurant around the corner of your hotel is the best in town because you ordered a salad. You never know, maybe the one you passed while running to catch your flights has better ones...
In my experience, visiting a city for the second or third time is even more fun than it was the first time. You get a little bit the feeling of coming home: you don't get lost as easily as the first time, you know some spots you want to go again (and some you certainly don't) and you know which local drink or meal you should definitely order. You've already seen the big tourist traps, so you can focus on the more local, yet equally beautiful things. It seems like you've got more time to enjoy the city, because you don't have to rush as much to see 'everything'.
Also, no city is ever the same. Try visiting during the summer holidays, then go back on a normal weekend during winter, and you'll know what I mean. Next to the weather, the company you travel with is a big influence on your experience. A place you've visited with school or your parents won't be the same when you go with friends, which again will be totally different of the romantic visit with the love of your life.
Last but not least, please don't check-off the entire country of your imaginary to-do-world-map, because it has way more to offer than just its metropoles.

So, my hints to you to have great citytrips -based on my own, small experiences-: don't think too much about it, but enjoy the little moments and feelings the city gives you. And please, don't be afraid to visit it again, you'll like it even more. Tell them I said it!