Going full-throttle with a hose when cleaning your bike could force water (soapy, potentially degreaser-laden water) into bearings. The degraded grease will then give out before its time.
Read more, click on the link http://www.active.com/cycling/articles/4-bike-wash-mistakes-to-avoid-879969?cmp
How to fix a flat without a patch kit. This is a youtube video that shows a very useful technique. Click on the link http://velonews.competitor.com/2014/01/video/ask-a-mechanic-repairing-a-flat-without-a-patch_314524