>>Tomte+(OP)
I'll vouch for the "Ian Knot". Throughout my life I had to double-tie the classic shoelace knot or else it would come loose a some point during the day. Then I tried the Ian Knot. It is significantly faster and easier. And, now I have some laced shoes that I just slip on because they stay tied for weeks instead of hours.
>>corysa+SE1
I concur. I'd always had problems with some tennis shoes with strings being short and thick, causing them to untie in the middle of a session. Has never been a problem since I learned that knot.