Mike's PC Tips and Tricks (my opinions -- your mileage may vary)
If you find anything I wrote useful and you *don't* know me, I wouldn't refuse a donation toward my Web hosting expenses and kids' college educations!
Gmail
I have been using e-mail since 1980.  Gmail is the best overall system I have used -- it's not even close.

Here are instructions for trying Gmail out.  The best part?  If you don't like it after you try it for a while, you just stop using it and go back to your old system.  It will be as if you never left.

1. Set up a Gmail account.

2. Import your other provider's e-mail and contacts into Gmail.

3. If your current e-mail provider offers forwarding (e.g. Yahoo!, Comcast, Verizon), forward your e-mail to your new Gmail account.  If you want the option of running side-by-side for a bit, check the box (or whatever) that says something like "Forward, but keep a copy on the server".  That way you'll have incoming e-mail in both places in case you bail on Gmail. [But, you won't bail.  No one who has followed my instructions ever has.  Really.]

4. If your current e-mail provider does not offer forwarding (e.g. AOL), Google up instructions for accessing e-mail from your provider from Gmail.  You'll set this up on Gmail's "Settings >> Accounts and import" tab, under "Check mail from other accounts (using POP3):." 

Important notes

--From now on, just give out your Gmail address to new contacts.  Old contacts can keep doing what they have been doing.  I have about 10 old e-mail accounts funneling into Gmail -- Gmail doesn't care, and neither do the people who have my old addresses.

--Did you check the box to "Keep e-mails on the server" (discussed above)?  If you did, write a note to uncheck it after you decide to stay with Gmail.  Otherwise, your old e-mail account will eventually fill up and start bouncing e-mails!

--Some e-mail providers require a periodic login (e.g. Yahoo!, AOL) to keep an account active.  Gmail forwarding/importing doesn't count.  So, remind yourself to log in, say, monthly to keep your account active.

--Let's say you're the first person I know who decides to leave Gmail and go back to your old provider.  What to do?

1. Seek professional mental health counseling.  You cra cra.  :-)
2. If your old provider is forwarding to Gmail, log in and stop that.
3. If Gmail is importing your e-mail via POP3 (see above), stop that.
4. Set Gmail to forward your e-mail to your old provider. 
5. It's like nothing ever happened.  If someone did make a note of your Gmail address during your trial period, no worries -- now it will get forwarded to your old provider.

--How to delete e-mails in Gmail: no.  Don't ever delete e-mails in Gmail unless they are bothering you.  Gmail users simply archive old messages.  If you want a message at some future time, just search for it.  If you don't, it ain't hurting anything or using up a valuable amount of space.  I imported e-mail going back to the early 90's into my Gmail account -- long before Google existed.  I did need to purchase some additional storage space (the $5/yr didn't break me), but you likely won't need to worry about space.  Ever. 

--Say goodbye to spam problems.  Google will rarely trap non-spam e-mails.  And, when it does, you simply create a filter and check the box to "Never send to Spam folder."  Done. 

--Create folders (called labels) to organize your e-mail.  If helpful, set up filters to automagically move your e-mail into the appropriate folder (label). 


Miscellaneous Gmail tips

--My recommended iPhone app for Gmail is Microsoft Outlook.  It does everything the Gmail app does, and it allows threaded conversations to be turned off.  For people who like a lot of control, I use the Airmail app -- but, it's more complex and not as intuitive.

--I use the Gmail app when I need to search my e-mail on my phone -- it's faster.  That's all I use it for -- not being able to turn off conversation threading makes it a one star app for me. 

--Once you get comfortable with Gmail, turn on keyboard shortcuts.  Wait until you're comfortable, though -- otherwise you'll press a button and do something you don't understand.