Everyone knows flat tire.
But few of us repair it. :) But with 5 USD Tire repair kit you are able to do it within 5 minutes!
Buy one kit from ebay or Amazon and put into car bag - it will save your life once.
You don't need to remove wheel if you see the hole.
Step 1: Step 1: Identify Leak.
Search where is the hole.
Step 2: Step 2: Tire Repair KIT
Contains 2 tools
some Repair Plugs
Step 3: Step 3: Clean the Hole
Push and pull the tool in the hole to remove dust in hole.
Step 4: Step 4: Glue
Glue the hole.
Step 5: Step 5: Push Plug
Push a plug with the other tool in half.
~Half of plug shuld be in and half should be out. Don't think too much.
Step 6: Step 6: Cut the Excess.
Cut plug approximately on the level of tire surface.
You are ready.