If you are an Android phone or tablet, and you want to send lots of photos to Touchbase, and these would come to more than 10MB in total, then the Android system can automatically offer you the option to shrink the images so that they don't take up so much space. (See here for more info; basically, select the photos you want to send using the Photos app, then click on the 'share' icon, then choose to send via mail.) But what if you want to send a single image, or a number of images that together come to less than that 10MB figure?
One option is the 'Snapseed' app mentioned in the page linked to above, but another is Compress Image. Once installed, the easiest way to use it is via the Photos app:
Use the Photos app to select the images you want to post (by long-clicking on one of them, and then just clicking on others to add or remove them from the selection), then click the 'share' icon and choose 'Compress Image';
at the next screen select the level of compression and click the Save button;
once the files have been compressed, click the 'share all' button;
Now choose Gmail (or your preferred email app) and compose your email to Touchbase, which will use the reduced-size versions of the image(s).
The curious might like to know that the pictures in the screenshots above were taken at Johnsons at Old Hurst, a farm shop/cafe north of Huntingdon with a reptile house and a small zoo; a good destination for young kids, though the playground is a bit of a wash-out in winter. Please do not feed (kids to) the crocs, however tempted.