Heuristic Analysis is the evaluation of user interface design in order to find out common usability issues and is a quickest ways of finding out usability problems and fixing them. Any skilled UI/UX Designer can help you perform Heuristic Analysis and eliminate useability issues before. Heuristic Analysis can be performed at any stage but it would be most beneficial if you perform this analysis on your existing designs before subjecting them touseability testing. Doing so will help you find deeper useability issues instead of rediscovering what is already known.

Following is an example taken from a popular recruitment site. In order to save the site from any criticism, I have blurred their identity and some of the email IDs listed on the page.

How would you like to hold somebody you genuinely love and care about? With one hand only when there was an option to hold both? How would you choose to treat him/her if you had to present him/her a choice? Consider this scenario:somebody who you genuinely care about is vising you on a cold day and you ask:

"Would you like to take tea or not?"

compare it with

"Would you like to take tea now or later?"

What would be your line for the one who you care about? Obviously the second one. What is that so? Why is first line not appropriate?

Now compare it with similar questions a software company asks its users soon after they install some fo their software.

By definition: “Information design is the skill and practice of preparing information so people can use it with efficiency and effectiveness.” To put simply, information design is a solution to a problem, built using text, images, video, graphs and other available data – that’s it.

Logic says we cannot have a solution unless some problem exists. Thus our solution, the information design must be an answer to some pre-known problem - or there would be no reason for it to exist. So what is the problem for which information design is needed? What is its nature? What is its scale? Is it important and worthwhile to solve?

Nothing is original. From straw to the tallest buildings, from underwater vehicles to space-ships, everything is built upon an idea, a form, an entity which had existed before. In better words it is called "Taking Inspiration" but it is not any less harsh than "stealing" someone's work.  Ripping of some-one's work who in reality had rippied some-one else's. It started with the first human being and it will continue to the last. We have grown building upon the best ideas and have taken them to a level further, expectings  our decendents would start from where we have left and would take them to higher level which we could not achieve today. We never feel "robbed" when we realize we are laying foundations for the next generation to start at but why is there a guilt when we start at the level which is meant for us to begin?

Following useability checklist lists some of common useability issues found on websites. In case you are designing a new UI or you own one which is already up and running, following list would help you avoid and resolve common useability issues.
This article contains warning level numbers (1, 2, 3, 4) at the end of each bulleted point. Warning Levels have following meanings:

1 - Advised: Can afford to ignoring it under reasonable circumstances
2 - Recommended: Low useability cost
3 - Essential: High useability cost
4 - Don't even think to ignore!

Designing by definition is a “problem solving activity”. But where this definition defines what designing does, it fails to elaborate the importance of “design” and the impact it has on the life of people. If I have headache, I would take a pill and my problem is solved - leaving me problem free in a usual healthy state. However, design is not merely a pill which takes you out of a problem, it also has an implicit responsibility to extend user experiences - to improve their lives. A design which is just a solution is acceptable but the design which extends the user experience becomes desirable. Let’s understand this aspect further.