Two absolutely unrelated tips (sortof)

Tip #1:
When changing disc brake pads on a vehicle, remove the cap on the master cylinder and very carefully and slowly push the caliper back in place to easily enable the re-installation of the assembly onto the rotor. Tah da!
Source: my wise neighbour N8

Tip #2:When you have multiple Microsoft Excel spreadsheets open, you can switch between them by pressing key sequence "Ctrl - Tab". Do not confuse with tip #2a.
Source: Dumb like....slip of the finger.

Tip #2a: Ok.....I have known this one for some time and thought it might be helpful to some people. If you have a Microsoft Excel spreadsheet open which consists of multiple sheets, you may switch forward to the next sheet by pressing key sequence "Ctrl - Page Down". You may switch backward to the previous sheet by pressing key sequence "Ctrl - Page Up".