Didi Explained: ExpressPool vs Express vs Select [Luxe, Express, Premier, Taxi]

Didi is the Uber/Lyft of China. You can use it to grab a quick cab ride with only your smartphone. Didi is my preferred method of transit in China because I am able to quickly and easily tell the driver where I’m going (by punching it into the app) and I know in advance how much the ride will cost– no dreaded cab meter running while you’re stuck in traffic behind an accident.

When it comes to Didi, there are several ‘categories’ of drivers you can select for your ride. These include:

  • Luxe
  • Express
  • Premier
  • Taxi

Didi Luxe is a premium service which lets you schedule your ride by selecting which luxury car you would like a ride in. At the time of writing, this includes an Audi A6L, Mercedes-Benz E-Class vehicles, and a BMW 5 Series. Since the amount of Didi drivers sporting these cars is limited, this service is best for scheduled-only rides meaning you’ll have to know in advance when you want to get a ride in one of these.

Didi Express includes several sub types:

  • ExpressPro – Akin to ‘Uber Pool’ your Didi route may be shared with other riders heading in the same direction as you are
  • Express – You’ll get the closest available Didi, which may include a driver new to the service with less experience.
  • Select – You’ll be riding with a well-rated Didi driver with experience of giving many rides in the city.

I’ve personally tried out both the Expres and Select service and noticed a worthwhile difference in the driver’s experience and smoothness of the ride. It was worth the extra $2 USD for me.

Didi Premier includes the premium and professional drivers on Didi. Premier drivers are a step up from Select drivers in that they have 5-star ratings and are known to be professional drivers in higher-end vehicles. Didi Premier has 3 options, all of which are “100% driver certified and 100% professional service”.

  • Comfort – enjoy a worry-free ride with a professional Didi driver
  • 6-seater business car – ride-with-friends in this SUV sized vehicle and a professional driver
  • Luxery – get nicest vehicle and a professional driver

Didi Taxi provides a way to call a taxi with metered fare. No different than calling or waving down a taxi, but you do it with an app.

If you need some more tips and tricks on China apps and traveling, check out Shanghai Advice

Jewelry Ring Gauge to mm / inch

This gauge chart applies to piercings (earings, nose rings, and all the other body holes you might have). The higher the gauge, the thinner the ring.

Gauge Inches Millimeters
10 0.102 2.59
11 0.091 2.31
12 0.081 2.06
13 0.072 1.83
14 0.064 1.63
15 0.057 1.45
16 0.052 1.29
17 0.045 1.14
18 0.04 1.02
19 0.036 0.91
20 0.032 0.81
21 0.028 0.71
22 0.025 0.64
23 0.023 0.58
24 0.02 0.51
25 0.0179 0.455
26 0.0159 0.404
27 0.0142 0.361
28 0.0126 0.32
29 0.0113 0.287
30 0.01 0.25
31 0.0089 0.226
32 0.008 0.2
33 0.0071 0.18
34 0.0063 0.16
35 0.0056 0.142
36 0.005 0.13
37 0.0045 0.114
38 0.004 0.1

Extract Last Word/Number in a Cell in Excel


Say you have the following excel table and you want to populate the right-most cell with the 8.99 from cell B1.

The function you’ll need is as follows:

=RIGHT(B1,LEN(B1)-FIND(“@”,SUBSTITUTE(B1,” “,”@”,(LEN(B1)-LEN(SUBSTITUTE(B1,” “,””)))/LEN(” “))))

This will get the last string with the right-most space before it.

CFR “[Reserved]” Status Meaning

The Code of Federal Regulations regularly assigns the title of [Reserved] to many titles, sub-parts, and chapters within the entire book of regulations. This status is used as a placeholder for future law to be written. Typically, it is especially used in parts of the law that are anticipated to be changing or expanding.

The “Reserved” status leaves room for growth in the CFR & eCFR.

eCFR – Code of Federal Regulations [CFR]

The Code of Federal Regulations (CFR) is the codification of the general and permanent rules and regulations (sometimes called administrative law) published in the Federal Register by the executive departments and agencies of the federal government of the United States.

The electronic format of this code is sometimes referred to as the e-CFR or eCFR. Access the Code of Federal Regulations.

The CFR currently is composed of 50 titles comprised of everything from emissions regulations to tobacco tax. Some of the regulations (including title 35 and many sub-parts) are given only the title of “reserved” indicating they can be added to later.